"We had people not here to vote, and I’m not going to bubblewrap it. There’s no excuse for that. Our job is to be here and vote.”

Rubio's brave and principled stand on Israel-Hamas demonstrated the qualities that likely persuaded Trump to make him secretary of state.

Rubio is noted for his hawkish position on China -- especially on trade -- and on Russia, although his positions on Ukraine have shifted.

Speculation is under way over which familiar faces from the first Trump administration might return in the second Trump administration.

Chinese online trolls are working against three Republican candidates while also trying to smear Sen. Marco Rubio.

Picking the wrong running mate could legally deprive Donald Trump of an entire state's worth of electoral college votes.

"He's a fantastic guy, and he's a friend of mine," Trump told a local TV station regarding a possible vice presidential pick.

"When Donald Trump was president, I can’t think of a single prominent Democrat who was chased around, persecuted, prosecuted," Rubio said.

"We have a lot of good ones," former President Donald Trump said of his potential running mates during a campaign stop in Philadelphia.

One name on Trump's shortlist of possible running mates could make mincemeat of Kamala Harris in a debate, according to a former Harris aide.