U.S. Rep. Greg Walden said this week that President Donald Trump’s efforts to pressure Ukraine’s president to investigate former Vice President Joseph Biden Jr. did not amount to “high crimes and misdemeanors,” the Constitution’s standard for impeachment.

Addressing House Democrats’ plan to pursue impeachment proceedings against the president, Walden, Oregon’s lone congressional Republican, said Trump’s phone conversation with Ukraine President Zelensky “wasn’t President Trump’s finest moment" but not grounds to remove the president.

“Americans deserve to get all of the facts - including seeing both the report from the whistleblower and the transcripts of the conversations former Vice President Joe Biden has had,” Walden said on Twitter.

Walden spoke with KLCC radio in Eugene as well, saying House Democrats “need to do it by the book. Because these are really serious things.”

He continued: “If you’re going to overturn the will of the American people and unseat a president of the United States you better have really good reasons and they better measure up to that.”

Walden told the news outlet that he supports the release of information on Trump’s call.

“If they are moving into a former impeachment process then while I would not sit as a juror that would be the senate, you’re kind of like a grand juror,” Walden said. "And so I don’t want to speculate on this that or the other thing, hypotheticals out there. I’m fine getting the facts. That’s what we need. And then see what they bring as a charge if there is any charge.”

The rest of Oregon’s congressional delegation supports impeaching Trump.