For potential White House contenders, NSA vote has 2016 implications

The split votes of three likely 2016 GOP candidates on a failed National Security Agency reform bill underscore a rift in the Republican Party that could spill over into the presidential primaries.

Sen. Ted Cruz (R-TX) was one of only four Republicans to vote in support of legislation to end the government's bulk collection of Americans' phone records. Sens. Rand Paul (R-KY) and Marco Rubio (R-FL) both helped stall the bill -- but for vastly different reasons. The 2016 campaign could give the potential candidates another platform to highlight their differing stances in the simmering debate over government surveillance.