Activists looking to increase the number of Latino senators are regrouping this week after an Arizona congressman they had backed passed on a Senate run and a seat in plurality-Hispanic New Mexico opened up.

The parallel developments changed the playing field but ultimately kept alive hopes there will be more Hispanic representation in the Senate after the 2020 elections.

Currently, there are currently just four Latino senators — Democrats Robert Menendez of New Jersey and Catherine Cortez Masto of Nevada, and Republicans Marco Rubio of Florida and Ted Cruz of Texas. Democrats are targeting three GOP-held states with sizable Latino populations: Arizona, Texas and Colorado. New Mexico Democrat Tom Udall’s decision to retire opens up his blue-state seat.

Latino activists said this week they saw their biggest opportunity in New Mexico, where both the Hispanic voting population and the number of potentially formidable Hispanic hopefuls have grown. But their prospects of recruiting strong Latino candidates in the other three states are less clear.

The Latino Victory Fund, which supports liberal candidates, had been trying to get Arizona Rep. Ruben Gallego to run for Senate, but Gallego announced Monday he was staying in the House.