A pair of Texas litigators are following Cruz's lead as they gird for a Supreme Court battle this April. On the campaign trail, Ted Cruz has vowed to rescind President Barack Obama's controversial executive actions on immigration - but it's two of his former aides who could actually kill it. Scott Keller and Chip Roy - who served in top roles in Cruz's Senate office - are now litigators on behalf of Texas, leading the lawsuit against Obama's unilateral actions, which are at the cornerstone of the president's immigration legacy. The duo's positions also underscore Cruz's enduring influence and reach...