A super PAC supporting Ted Cruz has its eyes trained on Marco Rubio.According to James Hohmann's The Daily 202, Keep the Promise I, a Cruz super PAC, is launching four new advertisements, including one that hits Rubio on immigration. The 30-second spot features Senate Democratic leaders talking about Rubio's involvement in a biapartisan immigration bill proposed several years ago.The words "Marco Rubio has some strange friends when it comes to immigration" flash on the screen, before clips of Sens. Harry Reid and Chuck Schumer begin airing.Hohmann reports the super PAC is also sending a mailer to more than 250,000 likely...
