WASHINGTON — The House Ethics Committee has extended its investigation of charges that Rep. Jim Renacci used his congressional office to promote his gubernatorial candidacy.

In a brief statement on Monday, the committee announced that the chairman and ranking member of the committee had “jointly decided to extend the matter regarding Representative Jim Renacci, which was transmitted to the Committee by the Office of Congressional Ethics on Aug. 9, 2018.”

The Office of Congressional Ethics had received a five-page complaint in April from the Ohio Democratic Party accusing Renacci of using his congressional website to promote his gubernatorial candidacy; tweeting about his campaign on his official House Twitter account; tweeting a picture of him engaging in a campaign activity in his House office and sharing a photo of him at a congressional hearing on his campaign Facebook page.

Renacci, who is leaving the House on Jan. 3, briefly ran for governor before jumping into the U.S. Senate race against Sen. Sherrod Brown, D–Ohio. Renacci lost that race by about 6 percentage points.

In its statement announcing the extended investigation, the committee noted that the extension “does not itself indicate that any violation has occurred, or reflect any judgment on behalf of the committee.”

Kelsey Knight, a spokeswoman for Renacci, said the Ohio Democratic Party, which made the complaint, “has falsely and repeatedly accused Jim Renacci of everything short of the Lincoln assassination,” adding that the party’s complaint was “baseless.”

“Our office has made clear that it would work closely with ethics officials to set the record straight on the Ohio Democratic Party's latest attempt to deceive the public and desperately trash Jim Renacci's record in public service,” she said.

In his original letter making the complaint, Ohio Democratic Party Chairman David Pepper said that by using official House resources for political purposes, “Representative Renacci is undermining the credibility and dignity of the House.”

Pepper’s letter lists a series of actions that he said violate congressional rules. For example, on Sept. 8, 2017, Renacci posted on his congressional website a column he wrote for the Toledo Blade detailing the actions he’d take if elected Ohio’s next governor.

Five days later, he posted a column on his website that he wrote for Capitol Hill publication “The Hill” detailing how he would fight the opioid crisis if elected governor. And on Jan. 12, 2018, his official House Twitter page twice advertised a Fox News interview detailing Renacci’s decision to run for the Senate and also publicized a series of radio interviews where he discussed his Senate candidacy.