How would a brokered convention to replace Joe Biden work - and could it backfire and cost Democrats the 2024 election

President Joe Biden is attempting to combat escalating calls within his party to drop out of the presidential race as some Democrats fear he's not up for the job and beating Donald Trump

But if the president does make an exit in the coming weeks, there is no clear alternative replacement for the top of the ticket raising the possibility of a brokered convention for the first time in more than seventy years.

Democrats head to Chicago for the Democratic National Convention in August, though due to deadlines to make it on some state ballots, there will be virtual proceedings to certify Biden as the nominee before in-person programming kicks off August 19. 

Biden as amassed nearly 4,000 pledged delegates committed to supporting him as millions of voters cast ballots for the incumbent president during the primaries.

Biden speaking nearly four years ago on the fourth day of the Democratic National Convention in 2020 in Wilmington, DE

Biden speaking nearly four years ago on the fourth day of the Democratic National Convention in 2020 in Wilmington, DE

The Democratic National Committee has emphasized that presently Biden is the only person eligible for nomination and delegates can either vote for the president or be marked present, according to talking points.

And Biden and the White House on Wednesday reiterated the president does not plan on dropping out of the race. 

But if he were to change course in the coming weeks, it opens the door to a wild and a potentially exhausting nominating process next month at the convention with voting until a nominee is chosen by a majority of eligible voting delegates. 

A brokered convention is a presidential nominating convention where delegates fail to nominate a candidate on the first ballot. It means no candidate gets the votes of more than half of delegates in the first round. 

Once upon a time, brokered conventions happened regularly because the major parties did not hold primaries to award delegates the way they currently do. 

It lead to a series of complex negotiations playing out among some party power brokers, typically federal and state leaders including party officials, lawmakers and governors. 

The voting continues on a round of ballots until a candidate receives a majority of delegates.  

The last time there was a brokered convention was in 1952. 

Then Illinois Governor Adlai Stevenson and Sen. John Sparkman at the Democratic National Convention in Chicago in 1952, the last time there was a brokered convention

Then Illinois Governor Adlai Stevenson and Sen. John Sparkman at the Democratic National Convention in Chicago in 1952, the last time there was a brokered convention

Stevenson secured the Democratic party nomination in 1952 on the third ballot at the Democratic National Convention in Chicago

Stevenson secured the Democratic party nomination in 1952 on the third ballot at the Democratic National Convention in Chicago

In the end, Democrats were able to nominate Democrat Adlai Stevenson on the third ballot. Republican Dwight D. Eisenhower that year was just nine votes short on the first ballot, prompting some delegates to change their votes to make him the official nominee. 

The longest brokered convention to date took place 100 years ago in 1924 when Democrats took sixteen days and 103 ballots to nominate diplomat John Davis.  It took Franklin Delano Roosevelt four ballots to secure the 1932 Democratic nomination.

'We really don't have any standards or benchmarks or known procedures,' said Leonard Steinhorn, professor at American University, of what a brokered convention would look like in 2024. 'We're sort of walking a little bit in the wild right now,' he said.

While the terms brokered convention and contested convention are often used interchangeably, there is a key difference. 

A contested convention is one where the one candidate has done well but not enough to guarantee nomination on the first ballot, so another candidate tries to convince delegates to abandon the frontrunner. 

It has been more common in the modern era than a brokered convention, according to Elaine Kamarck from the Brookings Institute. 

With Biden in the race, the convention is more of a public relations event for the party and president because the nominee is already determined, and in this current case well known incumbent president.

But if Biden were to exit the race before the convention, there is not a clear frontrunner, unless the president moves to pass the baton and makes an endorsement.

Political parties have largely tried to avoid both brokered and contested conventions because history shows candidates who need multiple ballots to be nominated are less likely to win the White House.

It is a pressing concern as Democrats ponder the best candidate to take on Trump this fall. 

Of the sixty Democratic and Republican nominating conventions from 1868 after the Civil War through 1984, eighteen candidates were nominated on multiple ballots according to Pew. 

Of those, only seven were elected president, and among those, four were running against other nominees who also faced multiple ballots to receive the nomination. 

The last time a Democrat vigorously argued for an open convention was late Senator Ted Kennedy in 1980. The senator challenged President Jimmy Carter for the nomination. Ultimately, delegates had to stay faithful based on their state results when voting. But Carter went on to lose the election that fall to Ronald Reagan.

Before that, Republican President Gerald Ford went into the 1976 convention with a clear majority of delegates but not a necessary number to lock up the nomination leading to a serious challenge from then-Governor Reagan. He ended up winning on the first ballot but went on to lose the election to Carter.

'You want a party united behind the person who seems to be the popular choice of the members of that party, of the voters,' Steinhorn noted.

Determining the candidate at the convention would force the party and campaign to scramble to introduce the nominee to the public, raise money and hit the campaign trail before Election Day.

Donald Trump speaking at a rally in Chesapeake, VA on June 28. Republicans hold their convention July 15 to 18 where the ex-president will officially become the party's presidential nominee

Donald Trump speaking at a rally in Chesapeake, VA on June 28. Republicans hold their convention July 15 to 18 where the ex-president will officially become the party's presidential nominee

What could benefit Democrats if they were to face a brokered convention in 2024 is whoever their nominee is if not Biden, the opponent is Trump.

'This is going to be an unusual year because Donald Trump has very, very high negatives,' said Steinhorn.

While Democrats would be playing catchup for November in their messaging and ground game, there could be a key difference.

'Because Donald Trump is so singularly unpopular as the opposing party nominee, it potentially does give the Democratic Party is small advantage,' he added.