Several politicians thought to be in consideration as Mitt Romney’s running mate have joined the presumptive GOP presidential nominee at a Utah retreat.

More than 500 individuals are expected to attend the event with big Romney donors in Utah, according to a report in Bloomberg.

Former Gov. Tim Pawlenty (Minn.), Sen. Rob PortmanRob PortmanSanders: GOP healthcare bill is a 'moral outrage' Opioid crisis threatens GOP ObamaCare repeal A tale of two drug bills — one proposed bill will worsen the drug prices crisis MORE (Ohio), Rep. Paul RyanPaul RyanWhy Mariel Cuban criminals deserve amnesty (and Anti-Castro Republicans should support it) GOP agrees on one thing: ObamaCare taxes must go Ryan reminds lawmakers to be on time for votes MORE (Wisc.), Gov. Bobby Jindal (La.), Gov. Bob McDonnell (Va.), and Sen. John ThuneJohn ThuneSenate panel unveils aviation bill with consumer protections, drone fix Four Senate conservatives say they oppose ObamaCare repeal bill Live coverage: Senate GOP unveils its ObamaCare repeal bill MORE (S.D.) will be among the attendees, according to ABC News.

ADVERTISEMENT
The 2008 GOP nominee Sen. John McCainJohn McCainFrustrated Dems say Obama botched Russia response Coats: Trump seemed obsessed with Russia probe The Hill's Whip List: Senate ObamaCare repeal bill MORE (Ariz.), former Gov. Jeb Bush and former secretaries of state Condeleeza Rice and James Baker III are also joining the event, according to Bloomberg’s report.

Notably absent will be Sen. Marco RubioMarco RubioElection hacking fears turn heat on Homeland Security Will Republicans stand up to the NRA's insurrection rhetoric? The Hill's Whip List: Senate ObamaCare repeal bill MORE (Fla.) who is thought to be among the top veep options for the GOP presidential hopeful, according to the Wall Street Journal. Rubio told the Journal he wanted to spend the time with his kids.

Attendees flew to Salt Lake City Thursday night and went to a cookout at Olympic Park Friday night, according to ABC News. Chateaux at Silver Lake, a hotel, is hosting the event, Bloomberg reported.

The event will be a who’s who of the GOP party and is sure to be an attractive event for donors. Fundraising events are key for donors to get their time to hob-nob with the leaders the are supporting.

This retreat is no different. Campaign and party heads such as former White House advisor and American Crossroad super-PAC founder Karl Rove will field private meetings with donors and offer lectures on several issues like foreign policy, Bloomberg reported.