Donald Trump has narrowed down his choices for vice president. The presidential hopeful is currently waffling between New Jersey Governor Chris Christie and former House Speaker Newt Gingrich, and could announce his final choice before he reaches Cleveland, reports say.

While Trump claimed his original list contained only four possible choices, sources say it was closer to seven. This has since been narrowed down considerably, with the final candidate and running mate being announced at the convention.

The Veepstakes

Christie has become one of Trump’s top defenders following a long bitter rivalry. According to his rep, the governor has already received the “official paperwork for the vetting process” and is being “seriously considered.”

Although Christie ran against Trump in the GOP primary, the two seem to have buried the hatchet, and Christie has been a “reliable presence” at Trump’s events ever since. He has defended Trump against critics and, according to a close source, has become one of Trump’s most trusted behind the scenes advisors.

If Trump wins the Oval Office, both possible VPs would help him get his legislative plans through Congress, as both have the political experience and knowledge to get things done.

In other words, Trump would delegate.

According to CNN Politics, The New York Times and The Washington Post were two of the major news outlets to first break the story. Other possible “final contenders” for vice president include Senator Jeff Sessions (AL, R) and Senator Bob Corker (TN, R), according to the Post. However, campaign sources claim this report to be largely inaccurate, and it has since been amended.

They did, however, hint at a “surprise choice.”

CNN affiliate WBIN-TV caught up with Trump, asking him if he was considering Christie or former Senator Scott Brown (Mass.) as running mates.

“Well, they’re both good guys. I don’t want to say shortlist but certainly they’re great people,” Trump said. “Scott was a very early supporter and Chris was very early after he got out. And they’re certainly people I want involved.”

Christie has also spent many hours as a top recruiter for Trump’s campaign, fundraising and endorsing. He has encouraged those on the Trump v. Clinton fence to pick a side and stick to it, basically saying “Trump is going to win – get on board now.”

On the other hand, Gingrich has always been a firm defender of Donald Trump. His own 2012 presidential run earned him a lot of fans even though he ultimately lost to Mitt Romney.

However, reports from this past Sunday have revealed he has “not been formally asked to be considered” for vice president.

“Nobody’s called me. Nobody has said, ‘Would you like to be?”’ Gingrich said on “Fox News Sunday.” “Nobody has said anything.”

Some sources believe Gingrich may have weakened his standing in the “veepstakes” when he spoke out against Trump’s attack of a federal judge with Mexican heritage. At the time, the judge was overseeing a lawsuit filed against Trump University. Gingrich says Donald Trump’s racist remarks were “completely unacceptable.”

Donald Trump will likely announce his running mate at the convention in Cleveland.