Top congressional Democrats on Wednesday slammed President TrumpDonald John TrumpTrump conversation with foreign leader part of complaint that led to standoff between intel chief, Congress: report Pelosi: Lewandowski should have been held in contempt 'right then and there' Trump to withdraw FEMA chief nominee: report MORE's response to a series of suspicious packages sent to prominent Democratic officials, saying his "words ring hollow." 

"Time and time again, the President has condoned physical violence and divided Americans with his words and his actions," Senate Democratic Leader Charles SchumerCharles (Chuck) Ellis SchumerSchumer, Pelosi push Trump to back universal background check bill Sinema says she would back Kennedy in race against Markey Democrats threaten to withhold defense votes over wall MORE (N.Y.) and House Democratic Leader Nancy PelosiNancy PelosiPelosi: Lewandowski should have been held in contempt 'right then and there' Democrats bicker over strategy on impeachment Overnight Health Care — Presented by Partnership for America's Health Care Future — Pelosi set to unveil drug price plan | Abortion rate in US hits lowest level since Roe v. Wade | Dems threaten to subpoena Juul MORE (Calif.) said in a joint statement.

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The two Democratic leaders pointed to Trump's support for Rep. Greg GianforteGregory Richard GianforteHere are the lawmakers who aren't seeking reelection in 2020 House Democrats targeting six more Trump districts for 2020 House GOP fears retirement wave will lead to tsunami MORE (R-Mont.), who pleaded guilty to assaulting a reporter, and accused the president of supporting "dictators around the world who murder their own citizens, and referring to the free press as the enemy of the people."

"President Trump's words ring hollow until he reverses his statements that condone acts of violence," Schumer and Pelosi said.

Their statement comes after Trump said that he condemned "political violence" and urged the country to unify after suspicious packages were mailed to a number of prominent Democratic officials, donors and to CNN, a network often targeted by Trump.

"I just want to tell you that in these times, we have to unify. We have to come together and send one very clear, strong, unmistakable message that acts or threats of political violence of any kind have no place in the United States of America,” Trump said at a White House event where he signed an anti-opioid epidemic bill into law.

Authorities intercepted explosive devices addressed to former President Obama, Hillary ClintonHillary Diane Rodham ClintonQueer Marine veteran launches House bid after incumbent California Rep. Susan Davis announces retirement Poll: Trump neck and neck with top 2020 Democrats in Florida Former immigration judge fined, temporarily banned from federal service for promoting Clinton policies MORE, former CIA Director John BrennanJohn Owen BrennanTrump lashes out at former intel officials for criticism of Iran tweet Trailer shows first look at Annette Bening as Dianne Feinstein Webb: Questions for Robert Mueller MORE and former Attorney General Eric HolderEric Himpton HolderEric Holder says Trump is subject to prosecution after leaving office Eric Holder: Democrats 'have to understand' that 'borders mean something' Trump lawyers ask judge to toss out Dems' tax return lawsuit MORE. Another suspicious package addressed to Rep. Maxine WatersMaxine Moore WatersBipartisan housing finance reform on the road less taken Manufacturing group leads coalition to urge Congress to reauthorize Ex-Im Bank Democrats' impeachment message leads to plenty of head-scratching MORE (D-Calif.) was also intercepted by police.

On Monday an explosive was found at Democratic mega-donor George Soros's home. And separately on Wednesday, the Time Warner building in New York City was evacuated after reports of a suspicious package sent to CNN.

Trump did not mention any of the officials targeted by name and did not address criticism that his own rhetoric has helped contribute to the political environment.

Republican and Democratic lawmakers have condemned the attempted attacks, but some of the president's critics have noted that his comment on Wednesday comes just days after he praised Gianforte at a rally in Montana.

Schumer and Pelosi added that they "listened with great interest" to the president's comments on Wednesday. 

“Once again, we salute the heroism of America’s first responders as they work to counter the outrageous mail bomb attack. ... We all take an oath to support and defend the Constitution and protect the American people, and that is our first responsibility," they said. 

The joint statement comes after Schumer said in a tweet on Tuesday that political violence should be condemned regardless of who is being targeted. 

"Make no mistake: Despicable acts of violence and harassment are being carried out by radicals across the political spectrum — not just by one side. Regardless of who is responsible, these acts are wrong and must be condemned by Democrats and Republicans alike. Period," Schumer said

 
--This report was updated on Oct. 25 at 7:31 a.m.