Washington (CNN) Republican Sen. Martha McSally of Arizona did not directly reveal her opinions on the case behind a Democratic-led impeachment inquiry into President Donald Trump on Wednesday, calling the House probe "quite partisan" but also a "serious matter."

When asked by 12 News KPNX if she thought Democrats had a case, McSally said there was a lot of "partisan bickering going on" in Congress, citing comments from House Speaker Nancy Pelosi and Intelligence Committee Chairman Adam Schiff, a California Democrat who is among those leading the impeachment inquiry.

"This is a serious matter, like I said. And I think we've seen some partisan dynamics going on. I think as Americans, none of us should be throwing around the 'I' word as if it's a joke," McSally said. "Every senator voted for the Senate Intelligence Committee to look into the matter in a bipartisan way. I think what we've seen out of Pelosi and Schiff and others in the House is quite partisan and I think people want us to take a serious look at this and not have it be just partisan bickering going on."

"People are tired of that, as am I," she added.

The senator, who was appointed in 2018 to fill the seat of late Republican Sen. John McCain, is up for election in 2020 in a state Trump won in 2016 but where Democrats think they can be competitive.

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