Trump expected to announce his VP running mate today as RNC gets underway

Former President Donald Trump is expected to announce his pick for a vice presidential running mate ahead of the Republican National Convention's formal vote to nominate the ticket on Monday evening, according to sources familiar with the plans. 

It's not yet clear exactly when or how the president will announce his selection. The RNC's first floor session gets underway at Fiserv Forum in Milwaukee, Wisconsin, at 1:45 p.m. ET, with speakers and votes on party business running into the night.

Fox News' Bret Baier said on air earlier in the day that Trump told him the VP announcement would come Monday.