MOBILE, Ala. - Republican front-runner Donald Trump rallied thousands of supporters in south Alabama by telling them: "I would like to have the election tomorrow. I don't want to wait."

"I know how Billy Graham felt," he said Friday night as he addressed the largest crowd yet of his thriving presidential campaign. The 40,000-seat Ladd-Peebles Stadium was about half-full when he began his speech.

Trump evoked Graham - the evangelist who packed stadiums around the world - as he brought his message to the Deep South.

Trump was welcomed by an array of Alabama politicians, including Republican Sen. Jeff Sessions, who praised him for the attention he's drawn to immigration issues. And Trump led off his speech with more criticism of immigrants living in the country illegally, drawing loud cheers when he repeated his promise to build a wall on the U.S.-Mexico border.

He reiterated his intention to end "birthright citizenship" for children of immigrants here illegally.

Trump also attacked the Obama administration's deal with Iran to restrict that country's nuclear program, calling it "so sad."

And he again promised to "repeal and replace Obamacare" - the health care law that's President Barack Obama's defining domestic achievement.

The South will be strategically important because a group of states in the region, including Alabama, hold their primaries on March 1, right after the early voting states.

Before Trump arrived, his fans - some carrying signs, others wearing T-shirts supporting the billionaire businessman - spoke of his outsider status in a crowded field dominated by former and current elected officials as the song "Sweet Home Alabama" blared from loudspeakers.

"Donald Trump is telling the truth and people don't always like that," said Donald Kidd, a 73-year-old retired pipe welder from Mobile. "He is like George Wallace, he told the truth. It is the same thing."

Wallace, a fierce opponent of civil rights, served as governor of Alabama and sought the presidency multiple times.

Kidd said Trump is a "breath of fresh air," and praised him as a businessman with common sense.

Savannah Zimmerman, a 27-year-old registered nurse from Mobile, agreed. "I think he appeals to us Southerners because he tells it like it is and he has strong opinions. That is the way we are here in the South," she said.

Mary Anne Bousenitz, 59, a retired psychiatrist from Tuscaloosa, said she isn't offended by the insults Trump has directed at women, like "dog" and "bimbo."

"I'm not married to the man and it's not like I'm going to have to sit across a turkey at the table with him," she said.

Interest in the candidate forced organizers to move a planned rally from the Mobile Civic Center, which holds about 2,000 people, to Ladd-Peebles Stadium, a 40,000-seat football stadium.

Before the rally, Trump tweeted: "We are going to have a wild time in Alabama tonight! Finally, the silent majority is back!"

During the height of the Vietnam War, Richard Nixon sought the backing of the "silent majority," widely considered to be Americans who stood behind the Republican president and weren't getting the attention that protesters attracted. Trump has derided elected officials and cast his candidacy as an outsider's bid.

Republican rival Jeb Bush's campaign e-mailed thousands of supporters in Alabama on Friday night, denouncing Trump as a Republican presidential candidate. The campaign statement said Trump favors partial-birth abortions, supports restrictions on gun rights and backs laws that infringe on states' land rights.

"Trump's positions are deeply out of step with the Alabama way of life," the campaign said in the email. "We know Alabama cherishes life, especially the life of the unborn."

Right to Rise USA, the super PAC supporting Bush, tweeted photos of a plane, with a banner ad bashing Trump and promoting Bush, flying over the stadium before Trump's rally.