Sen. Ted Cruz on Thursday called out Donald Trump for previously supporting immigration amnesty in 2013, back when Cruz was fighting against the Gang of Eight amnesty bill. "Congress must protect our borders first. Amnesty should be done only if the order is secure and illegal immigration has stopped," Trump tweeted in August 2013, expressing a more lenient stance on immigration than he does on the campaign trail today. "Trump SUPPORTS amnesty. Read his 2013 tweet - while I was leading the fight to defeat Rubio Gang of 8 amnesty. #Truth" Cruz said in his retweet of Trump's words. Trump...