During a rally in Pennsylvania on Saturday, President Donald Trump took some shots at one of his favorite punching bags: Senate Minority Leader Chuck Schumer.

"Sen. Schumer is a bad leader, not a natural leader at all," Trump said. "He works hard to study leadership. When you have to study leadership, you've got problems."

"Schumer is weak on crime and wants to raise your taxes through the roof," Trump continued. "He is a poor leader, known him a long time, and he’s leading the Democrats to doom. It’s sad to see for our country, what’s happening to the Democrat Party."

On "Fox News Sunday," Schumer responded to the president's words, saying that "name-calling doesn't work" and Trump should focus on the issues.

"I’d say the president’s first 100 days have hardly been a success," Schumer said. "He’s broken promises to the working people of America, unfulfilled others."

"When he campaigned, he campaigned as a populist against the Democratic and Republican establishments. But he’s governing like someone from the hard-right, wealthy special interests," Schumer explained.

He said the Democratic Party is willing to work with Trump, but so far, the president has totally left them out of discussions about tax reform and ObamaCare.

Schumer acknowledged that the Trump administration has managed to pass several executive orders and repeal some regulations, but those "accomplishments" have actually been bad for everyday Americans.

"They have broken their promises to the working people of America," Schumer said. "Americans are seeing that. That's why his popularity ratings are lower than any president in history."

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