Some of Trump's 2024 rivals have started to weigh in following news of a federal indictment against the former president.

Florida Gov. Ron DeSantis denounced on social media the "weaponization of federal law enforcement" and said that a "DeSantis administration will bring accountability to the DOJ, excise political bias and end weaponization once and for all."

Former Arkansas Gov. Asa Hutchinson said in a statement to ABC News that the criminal proceedings are a "major distraction" and "reaffirms the need for Donald Trump to respect the office and end his campaign."

"With the news that Donald Trump has been indicted for the second time, our country finds itself in a position that weakens our democracy," Hutchinson said. "Donald Trump's actions -- from his willful disregard for the Constitution to his disrespect for the rule of law -- should not define our nation or the Republican Party. This is a sad day for our country."

Former New Jersey Gov. Chris Christie told PBS that if Trump "committed a crime and there is evidence beyond a reasonable doubt to prove that crime, then he must be charged," and that not doing so would set the rule of law in the U.S. back.

Christie later tweeted, "We don't get our news from Trump's Truth Social account. Let's see what the facts are when any possible indictment is released. As I have said before, no one is above the law, no matter how much they wish they were. We will have more to say when the facts are revealed."

Sources tell ABC News that former President Trump faces at least seven charges in the federal indictment:

-Willful retention of national defense information (maximum penalty if convicted: 10 years)
-Conspiracy to obstruct justice (maximum penalty: 20 years)
-Withholding a document or record (maximum penalty: 20 years)
-Corruptly concealing a document or record (maximum penalty: 20 years)
-Concealing a document in a federal investigation (maximum penalty: 20 years)
-Scheme to conceal (maximum penalty: Five years)
-False statements and representations (maximum penalty: Five years)

-ABC News' Katherine Faulders, John Santucci and Alexander Mallin

House Speaker Kevin McCarthy called news of Trump's federal indictment "unconscionable" and said House Republicans will "hold this brazen weaponization of power accountable."

The speaker is the first of the Big Four to comment on Trump's second indictment.

-ABC News' Lauren Peller

With former President Donald Trump now facing a second indictment, this time on federal charges, according to sources, it's a turn of events that could shake up the Republican primary field as Trump makes a third run for the White House.

The aftermath of Trump's first indictment in New York connection to an alleged hush money scheme could be an indication of what is to come. Before his first indictment, Trump pledged to continue on with his presidential bid despite charges and even argued that cases could give his campaign a boost. Trump wasn't wrong.

In fact, he still outpaces his GOP rivals in recent polling.

Another boon to his campaign, the fact that Republicans by and large rallied around him after his first indictment -- even most of those challenging him in the Republican presidential primary.

But the field of candidates is more crowded now, comprised of more candidates willing to clearly criticize Trump.

Read more of ABC News' analysis here.

-ABC News' Averi Harper

The 49-page indictment against former President Donald Trump has been unsealed.

Trump has been charged with 37 counts: 31 counts of willful retention of national defense information; one count of conspiracy to obstruct justice; one count of withholding a document or record; one count of corruptly concealing a document or record; one count of concealing a document in a federal investigation; one count of scheme to conceal; and one count of false statements and representations.

The indictment alleges Trump had "lawful access to the most sensitive classified documents and national defense information gathered and owned by the United States government."

During his presidency, prosecutors said, Trump gathered classified documents and other materials in boxes, including "information regarding defense and weapons capabilities of both the United States and foreign countries; United States nuclear programs; potential vulnerabilities of the United States and its Allies to military attack; and plans for possible retaliation in response to a foreign attack. The unauthorized disclosure of these classified documents could put at risk the national security of the United States, foreign relations, the safety of the United States military, and human sources and the continued viability of sensitive intelligence collection methods."

Trump at least twice showed classified documents to others, prosecutors said, on separate occasions in 2021 at his club in Bedminster, New Jersey.

Trump aide Walt Nauta was charged with six counts: one count of conspiracy to obstruct justice; one count of withholding a document or record; one count of corruptly concealing a document or record; one count of concealing a document in a federal investigation; one count of scheme to conceal; and one count of false statements and representations.

Prosecutors described an exchange between Nauta and an unnamed member of the Trump family shortly after Nauta allegedly removed dozens of boxes from their storage location inside Trump's Florida home, Mar-a-Lago.

On May 30, 2022, prosecutors said the Trump family member texted Nauta: Good afternoon Walt, Happy Memorial Day! I saw you put boxes to Potus room. Just FYI and I will tell him as well: Not sure how many he wants to take on Friday on the plane. We will NOT have a room for them. Plane will be full with luggage. Thank you!"

Prosecutors said Nauta replied: Good Afternoon Ma’am [Smiley Face Emoji] Thank you so much. I think he wanted to pick from them. I don’t imagine him wanting to take the boxes. He told me to put them in the room and that he was going to talk to you about them."

The indictment alleges that Nauta removed about 11 boxes from the storage room on June 1, 2022.