Wisconsin Governor Scott Walker is backing Ted Cruz. In a series of tweets, Walker gave a ringing endorsement for who he called “a principled Constitutional conservative who can win.”

After the failed Obama-Clinton Admin, Americans want leadership. I endorse @TedCruz, a principled constitutional conservative who can win. — Scott Walker (@ScottWalker) March 29, 2016

Like we did in WI, @TedCruz isn’t afraid to stand up to big govt special interests. He understands that power belongs to states, not Wash DC — Scott Walker (@ScottWalker) March 29, 2016

.@TedCruz is the best-positioned candidate to both win the Republican nomination and defeat Hillary Clinton. I’m proud to stand with him. — Scott Walker (@ScottWalker) March 29, 2016

Wisconsin is polling very close between Donald Trump and Cruz, within the margin of error. The latest two polls (Emerson and Free Beacon) have Cruz up by 1 point, with Kasich siphoning 15-20 points (almost all of it from Cruz).

This only highlights the disingenuous nature of Kasich’s justification for staying in the race–he can’t help Cruz stop Trump, only help Trump win or help himself be a spoiler in Cleveland.

Wisconsin is a key state for Cruz, and if he takes all 42 delegates headed into New York, the momentum will certainly help. Walker’s endorsement is very much a player in Wisconsin, like the popular Nikki Haley’s was in South Carolina for Marco Rubio.

Speaking of Rubio, it sure would be nice if he would formally endorse Cruz and do some damage control for the scandals his supporters allowed Trump to hijack.