The campaigns of both Donald Trump and Hillary Clinton called Sunday for the FBI to release further details on its newly reopened investigation into Clinton-linked emails.

But Republicans questioned why the Democrats hadn’t made the emails public sooner and indicated they believe the latest October surprise provides an opening for their nominee.

FBI Director James Comey told Congress in a letter Friday he is reviewing new evidence of Clinton’s potential mishandling of classified information, reintroducing the former secretary of state’s controversial email practices into the public discussion with Election Day just around the corner.

The development dominated Sunday talk shows.

“This is something that has been tossed into the middle of the campaign,” Clinton campaign chairman John Podesta said on CNN’s “State of the Union.” “We would have preferred that that not happen, but now that it has happened, we would prefer that Mr. Comey come forward and explain why he took that unprecedented step.”

Podesta criticized Comey’s actions as “inappropriate.”

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Trump’s running mate, Mike Pence, commended Comey’s move on “Fox News Sunday” as “following through,” while telling NBC’s “Meet the Press” that Comey should disclose the email’s contents.

Comey’s review was tipped off by emails linked to top Clinton aide Huma Abedin that were found during an FBI probe into the sexting practices of her estranged husband, former Rep. Anthony Weiner.

“He has a duty to move forward professionally and in a timely way on this, and certainly, the public has the right to know about this,” Pence said of Comey before asking of Clinton, “Why didn’t she just turn to Huma and say, ‘Put these emails out?’ ”

Clinton campaign manager Robby Mook on “Meet the Press” said he was confident the renewed email scandal wouldn’t hurt her chances, but blamed Comey for Trump’s capitalizing of the vacuum created by the lack of details.

“If he doesn’t come out and get all the information on the table, he’s going to let anyone, any conspiracy theory take the day,” Mook said.

Trump campaign manager Kellyanne Conway speculated there is damaging information in the emails and said the new investigation, if anything, highlights Clinton’s lack of trustworthiness.

She told ABC’s “This Week” of Trump: “He just sees that there’s this constant cloud of corruption that follows Hillary Clinton around. And for the FBI to make this remarkable move eleven days before the election means there must be something there.”

The candidates are entering their final full week of stumping before Election Day.

On Monday, Clinton is due at early-voting events in Ohio, while Trump is set to rally supporters in Michigan and Florida.

National tracking polls released Sunday showed a tight race.

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An ABC/Washington Post poll found the Democrat with a 1-point lead in a four-way race; an Investor’s Business Daily/TechnoMetrica Market Intelligence poll showed Clinton up by 2 points among the four candidates; and a Los Angeles Times/USC poll had Trump up by 2 points in a head-to-head race.