Rand Paul is taking another stand in 2016, this time by endorsing one of Liz Cheney’s opponents just days before a wide-open House Republican primary in Wyoming.The Kentucky senator has a long-standing feud going with Cheney’s father, former Vice President Dick Cheney, and that disagreement is again coming to the surface on the eve of an eight-way congressional contest that Paul wants to make into a referendum on the George W.