Senior administration officials at the Department of Homeland Security are continuing to "watch closely, particularly in the online environment" surrounding a potential indictment against former President Donald Trump, a senior administration official said.

There is nothing "that rises to the level of being credible and specific" or "actionable," the administration official said. However, the official said that online "there are always things that emerge that will cause people to take note and possibly raise concern."

As the grand jury continues, the lines of communication with local authorities like the NYPD and Capitol Police have been "wide open."

"It's been a several day period of, I'd say, very open and continued information exchange between and among federal and state partners, focused on this issue," a senior administration official said.

-ABC News' Luke Barr

Manhattan District Attorney Alvin Bragg’s general counsel responded to House Republicans Thursday, telling them compliance with their requests for information would interfere with a legitimate law enforcement investigation.

General counsel Leslie Dubeck noted the House inquiry only resulted from former President Donald Trump’s social media post.

“Your letter dated March 20, 2023 (the "Letter"), in contrast, is an unprecedented inquiry into a pending local prosecution," Dubeck wrote. "The Letter only came after Donald Trump created a false expectation that he would be arrested the next day and his lawyers reportedly urged you to intervene. Neither fact is a legitimate basis for congressional inquiry."

The grand jury hearing evidence of former President Donald Trump’s alleged role in hush money paid to Stormy Daniels will not meet about the case for the remainder of the week, sources familiar with the matter told ABC News.

The grand jury is meeting Thursday to consider a different case, the sources said. The grand jury news was first reported by Business Insider.

The grand jury is expected to reconvene Monday to consider the Trump case, at which time at least one additional witness may be called to testify, the sources said.

The Manhattan district attorney’s office declined to comment.

It is not uncommon for grand juries to sit in consideration of multiple cases at once.

The Manhattan grand jury weighing charges against former President Donald Trump is expected to reconvene on Thursday, sources tell ABC News.

-ABC News' Aaron Katersky

As legal experts speculate on what charges lay inside the sealed indictment ahead of former President Donald Trump's expected surrender on Tuesday afternoon, many predict that prosecutors could try out a new legal theory to justify bringing the charges.

"This could be a novel legal theory," said Kate Shaw, a law professor at Cardozo and ABC News contributor, speculating on what charges the public could see against Trump while stressing it's unknown until the indictment is unsealed.

Read more here.

-ABC News' Libby Cathey