"I most certainly would be honored to be considered for that," Rubio says.
Trump continues to slam Warren over her claims of Native American heritage.
Trump said environmental regulations have handcuffed American energy production.
Sanders said he's "delighted" that Trump agreed to debate.
Fiorina denied that Clinton was a "trailblazing woman."
"Don't we have something in Asia that we want to talk about?" he asked in Japan.
Jonathan Swan 05/26/16 03:22 PM EDT
Americans for Prosperity is working against Renee Ellmers in her primary.
"I really know nothing about the Vince Foster situation."
She said she would introduce comprehensive immigration reform within her first 100 days.
Devin Henry 05/26/16 02:50 PM EDT
"The people of the United States should be given a significant piece of the profits."