After the 2020 elections, Republicans had 23 trifectas, Democrats had 15 trifectas, and 11 states had divided governments. Trifecta status in Alaska is pending. A trifecta occurs when one political party holds the governorship and majorities in both chambers of the state legislature.
Two divided government states gained Republican trifecta status following the 2020 elections. Joe Biden (D) won New Hampshire, which gained a Republican trifecta when Republicans won majorities in the state legislature. Donald Trump (R) won Montana, which gained a Republican trifecta when Greg Gianforte (R) won the governorship.
Besides New Hampshire, Biden also carried the Republican trifecta states of Arizona and Georgia. Republicans have had a trifecta in Arizona since 2009 and in Georgia since 2005.
In total, Trump won 20 Republican trifectas and Biden won three. Biden won the statewide vote in all 15 Democratic trifecta states.
Biden won three states Donald Trump (R) won in 2016 that now have divided governments. Wisconsin, Michigan, and Pennsylvania all went to Trump in 2016 and Biden in 2020. All three states previously had Republican trifectas; Michigan’s and Wisconsin’s were broken in the 2018 elections, while Pennsylvania’s was broken in the 2014 election.
Biden also won the presidential vote in four other divided government states: Maryland, Massachusetts, Minnesota, and Vermont. Hillary Clinton (D) won these states in 2016.
Trump won four divided government states that he also won in 2016: Kansas, Kentucky, Louisiana, and North Carolina. These states all gained divided trifecta status after electing Democratic governors. Louisiana elected a Democratic governor in 2015, followed by North Carolina in 2016, Kansas in 2018, and Kentucky in 2019.