Conservation Colorado has a history of picking winners with its endorsement, and they’re favoring Rep. Faith Winter in her run for state Senate next year.

Winter, a Democrat from Westminster, hopes to take on Republican incumbent Sen. Beth Martinez Humenik of Thornton in District 24. Thornton City Councilman Adam Matkowsky dropped out of the Democratic primary this week and plans to run as an independent.

Conservation Colorado, the state’s largest environmental organization, is a major player at the Capitol. In last year’s election, 54 of the 60 candidates Conservation Colorado endorsed went on to win.

“She’s a huge champion when it comes to protecting our air, land, water and communities at the state legislature, and we’re thrilled to throw our support behind her,” Jessica Goad, deputy director of Conservation Colorado, told us. “She has a 100 percent lifetime score on our annual legislative scorecard.”

Martinez Humenik has a lifetime score of 31 percent, Goad said.

Martinez Humenik was elected to the Senate in 2014, the same year Winter was elected to the state House.