Shortly after kicking off his campaign rally in Dallas on Thursday, US President Donald Trump targeted his Democratic opponents.

"I really don't believe anymore that they love our country," he said, prompting a chant of "four more years" from the crowd.

Trump was looking to galvanize voters in a state he carried by 9 percentage points in 2016.

The rally -- his third in a week -- comes as the embattled President faces an impeachment inquiry from House Democrats. He is also receiving criticism from some Republicans over his decision to withdraw US troops from Syria.

He told his supporters that what Democrats were really doing was targeting the Republican party, "and what they're really, really doing is they're coming after and fighting you," he said. "And we never lose."

Annette and Toby Adams pray before the rally. They traveled to Dallas from Kilgore, Texas.
Annette and Toby Adams pray before the rally. They traveled to Dallas from Kilgore, Texas.
Gabriella Demczuk for CNN
The rally was held at the American Airlines Center.
The rally was held at the American Airlines Center.
Gabriella Demczuk for CNN
Supporters wait for President Trump to arrive.
Supporters wait for President Trump to arrive.
Gabriella Demczuk for CNN
The crowd stands for the national anthem.
The crowd stands for the national anthem.
Gabriella Demczuk for CNN
Trump takes the stage. "The more America achieves, the more hateful and enraged these crazy Democrats become," he said. "They're crazy. They are crazy. At stake in this fight is the survival of American democracy itself."
Trump takes the stage. "The more America achieves, the more hateful and enraged these crazy Democrats become," he said. "They're crazy. They are crazy. At stake in this fight is the survival of American democracy itself."
Gabriella Demczuk for CNN
Members of the media report from the arena.
Members of the media report from the arena.
Gabriella Demczuk for CNN
American Airlines Center seats an estimated 20,000 people.
American Airlines Center seats an estimated 20,000 people.
Gabriella Demczuk for CNN
A young supporter waits for President Trump to finish his remarks.
A young supporter waits for President Trump to finish his remarks.
Gabriella Demczuk for CNN
Trump also attacked the impeachment inquiry and the whistleblower who set it off.
Trump also attacked the impeachment inquiry and the whistleblower who set it off.
Gabriella Demczuk for CNN
Supporters cheer during the rally.
Supporters cheer during the rally.
Gabriella Demczuk for CNN
Signs are passed out to Trump's supporters.
Signs are passed out to Trump's supporters.
Gabriella Demczuk for CNN
A private security guard scans the room.
A private security guard scans the room.
Gabriella Demczuk for CNN
Fans greet pro-Trump comedian Terrence K. Williams and take photos before the rally.
Fans greet pro-Trump comedian Terrence K. Williams and take photos before the rally.
Gabriella Demczuk for CNN
Police stand by as Trump supporters wait in line to enter the American Airlines Center.
Police stand by as Trump supporters wait in line to enter the American Airlines Center.
Gabriella Demczuk for CNN
Two women wear jackets referencing one <a href="https://www.cnn.com/2018/06/21/politics/melania-trump-jacket/index.html" target="_blank">worn by first lady Melania Trump</a> during a 2018 visit to the US-Mexico border that read, "I really don't care. Do u?"
Two women wear jackets referencing one worn by first lady Melania Trump during a 2018 visit to the US-Mexico border that read, "I really don't care. Do u?"
Gabriella Demczuk for CNN
Chairs left by those who waited hours in line to get in are gathered outside the venue.
Chairs left by those who waited hours in line to get in are gathered outside the venue.
Gabriella Demczuk for CNN