The presidential primary debates, and Donald Trump in particular, have brought new focus on immigration, but a new report documenting the visitors who overstay their visas could reframe the topic.

The Latest on the primary election in Oklahoma (all times local):

Presidential candidates on both sides of the aisle hope a flurry of last-minute campaign stops and television ads in Oklahoma pays off with a win in a state that Republicans like to brag is the “reddest of red.”