TOPEKA, Kan. (AP) — Kris Kobach, a vocal ally of President Donald Trump and an advocate of tough immigration laws, confirmed Friday that he is considering a run for the U.S. Senate in 2020 after losing the Kansas governor's race.

Kobach, the former Kansas secretary of state, joins a crowded field of Republicans who are either actively looking at the race or being touted as possible candidates. The list also includes U.S. Secretary of State Mike Pompeo.

Kansas Sen. Pat Roberts, a four-term Republican, announced earlier this month that he would not seek re-election. His decision set off a scramb...