Democratic Sen. Catherine Cortez Masto will win reelection in Nevada, CNN projects, clinching a critical victory that will allow Democrats to keep control of the US Senate.

Cortez Masto had long been viewed as one of the most vulnerable Democratic incumbents as she fended off a challenge from former Nevada Attorney General Adam Laxalt in a state whose economy had been hard hit by the Covid-19 pandemic and inflation.

With Cortez Masto – the first Latina senator – securing a second term, Democrats will hold 50 seats and Republicans will hold 49. Democrats are also defending a seat in Georgia, where Democratic Sen. Raphael Warnock and Republican Herschel Walker are headed to a December 6 runoff. But even if Republicans pick up that seat, the chamber would still be evenly divided, allowing Vice President Kamala Harris to still hold the tie-breaking vote. Democrats were able to hold the majority, in part, because they picked up a seat in Pennsylvania, where Lt. Gov. John Fetterman, a Democrat, defeated Trump-backed Mehmet Oz in the contest to replace retiring Republican Sen. Pat Toomey.