Political control of the Arizona Senate was on the ballot Tuesday. Counting by the end of the week has revealed a trendline that favors Republicans retaining control of the 30-member chamber, although hundreds of thousands of ballots remain to be counted.

Republicans running on the ballot underneath President-elect Donald Trump made gains in numerous state legislative chambers, though Democrats also notched a few victories in an expensive battle for state power.

The DFL monopoly on power in St. Paul is coming to an end. Democrats kept control of the Minnesota Senate with Ann John Stewart winning the only state Senate race on the ballot.

Elissa Slotkin defeated former Republican Rep. Mike Rogers to fill an open seat left by the retirement of Sen. Debbie Stabenow, D-Mich., by 0.4 percentage points, even though Trump won the state by 1.

Republicans inched toward a House of Representatives majority as more races were decided in their favor, and Democrats looked to pick up key races to tighten the match.

Donald Trump's Republicans held on to a narrow edge on Friday as election officials tallied the final votes that will determine control of the U.S. House of Representatives, though Democrats succeeded in flipping a pair of New York state seats.

Republicans have won control of the Senate, a major boost for President-elect Donald Trump to enact his agenda, confirm his Cabinet officials and secure lifetime appointments for federal judges, including any potential openings on the U.

Control of the US House continued to teeter on uncounted votes in about 30 congressional races Thursday, and the final tally will decide whether President-elect Donald Trump and Republicans have full grip on the government.

House control is still up for grabs with more than two dozen races left to be called. Republicans are looking to grow their Senate majority with seats still undecided in Nevada and Arizona.