Sen. Marco RubioMarco RubioAt CPAC, Trump lashes out at media Conquering Trump returns to conservative summit Rubio brushes off demonstrator asking about town halls MORE (R-Fla.) is hosting a fundraiser for Rep. Tom CottonTom CottonPerez to hit the Sunday shows following election victory GOP grapples with how to handle town halls Sanders: 'If you don't have the guts to face your constituents,' you shouldn't be in Congress MORE's (R-Ark.) Senate campaign in Miami, the latest help Rubio has provided to Cotton's campaign.

The senator will host a breakfast for Cotton at a popular Cuban restaurant in Miami on Monday, with the minimum contribution suggested at $500.

Rubio's leadership PAC is already spending heavily to help Cotton in his race against Sen. Mark Pryor (D-Ark.), airing ads touting Cotton's military background. The ads are the first major effort to help a 2014 candidate from the group.

The Miami Herald first reported the fundraiser.