Here are the Republicans to watch on Tulsi Gabbard and RFK Jr.

Two of President Trump's most contentious nominees are Tulsi Gabbard, his choice to be the director of national intelligence, and Robert F. Kennedy, Jr., his pick to lead the  Health and Human Services Department. 

After confirmation hearings last week, the Senate is expected to move forward with their nominations soon. But a handful of Republicans who have lingering concerns about them could foil or at least complicate their nomination processes. Here are the Republicans to watch.