Ted Cruz 'birther' row may go to court as Democrat gets ready for case focusing on Cruz's MOTHER (and his wife weighs in). Republican presidential runner-up Ted Cruz's eligibility in the 2016 nomination race is continuing to split open on the campaign trail. Cruz, a first-term Texas senator, is not only taking fire from prominent Republicans such as front-runner Donald Trump and 2008 GOP nominee John McCain over his claims of U.S. citizenship - but he now faces a potential lawsuit by a Democratic congressman. Florida Rep. Alan Grayson, an attorney, said this week he will sue to challenge Cruz's...