Call it the Sarah Palin bounce: Hours after the 2008 vice presidential nominee endorsed Ted Cruz, a Republican candidate for U.S. senator from Texas, on Thursday morning, the staff at Cruz's headquarters in Austin reported a swift and positive reaction. Nick Dyer, the Central Texas/Youth Director for Cruz tweeted: Campaign manager John Drogin confirmed by email to Yahoo News that Palin's endorsement "has added HUGE buzz to our campaign." "Phones are ringing, online contributions are pouring in, and supporters are more excited than ever on our social networks," Drogin wrote, adding that he's seen a "flood" of donations but has yet...