White House officials and their allies sought to pressure an Indiana Republican to drop out of a state Senate primary earlier this year, floating job opportunities and warning of the personal attacks she could face as they worked to pave the way for President Donald Trump’s preferred candidate.

In the primary, Trump has endorsed Brenda Wilson, a Vigo County Council member, against state Sen. Greg Goode, who voted against a redistricting plan that the president lobbied for last year. But her supporters fear a third candidate, Alexandra Wilson — a 34-year-old network engineer who isn’t related — could confuse voters since they share a last name, thus dividing the opposition to Goode.