Missouri’s GOP Senate candidates want Trump’s endorsement. Its power is being tested
Billy Long, R- Mo., pretends to auction off the Stanley Cup as President Donald J. Trump hosts the St. Louis Blues, the 2019 Stanley Cup Champions, at the White House in Washington, D.C., on Oct. 15, 2019. - Stefani Reynolds/CNP/Abaca Press/TNS

WASHINGTON — Rep. Billy Long thinks he has two paths to winning the Republican primary for U.S. Senate in Missouri. The first is the path of Kathy Barnette in Pennsylvania. After losing a congressional bid in 2020, Barnette set out to find voter fraud in her district based on a faulty statistical analysis of her race. In the process, she became a prominent figure in election denial circles, providing her with enough grassroots support to keep up with Trump-endorsed Mehmet Oz and billionaire David McCormick, both of whom spent millions on the race. Barnette, after a late surge, finished in thir...