A new poll says only 30 percent of Arizonans approve of McCain.
The former Massachusetts senator's poll numbers have declined over the past few months.
"I knew I could not let that stand without a fight," he said at CPAC.
The former Massachusetts governor is fundraising for Joni Ernst.
The women in the Americans for Prosperity ad are GOP activists in New Hampshire.
Two former Democratic congressmen are eyeing returns to Congress.
Jeb Bush's son, George P. Bush, wins the GOP nomination for Texas land commissioner.
Fighting off a GOP challenger, the Mississippi senator touts his work on the Hurricane Katrina relief.
"It's ironic to have someone like Harry Reid use the word 'un-American,'" says AFP head.
The Susan B. Anthony List is throwing its support to former Georgia Secretary of State Karen Handel's (R) Senate campaign.