Key GOP Convention Speakers Named

Gov. Christie will give the keynote and Sen. Rubio will introduce Mitt Romney.

New Jersey Gov. Chris Christie will deliver the keynote address at the Republican National Convention later this month, USA Today reported. Meanwhile, Florida Sen. Marco Rubio will introduce Mitt Romney, theTampa Bay Times reported.

Christie confirmed earlier reports that he would give the 20-minute address, saying he will make an "empathetic" argument for the GOP and voting for Mitt Romney. The Republican governor is on his fourth draft of the speech and "grinding away on it," he told USA Today.

For several months, both Christie and Rubio were reportedly on the shortlist of possible vice presidential picks for Romney.