A Hillary ClintonHillary Diane Rodham ClintonIt is wrong to say 'no collusion' 10 factors making Russia election interference the most enduring scandal of the Obama era And the winner of the Robert Mueller Sweepstakes is — Vladimir Putin MORE campaign aide appeared to confirm on Tuesday that the presumptive Democratic presidential nominee plans to announce her running mate on Friday.

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During an interview with CNN, Karen Finney was asked whether the announcement would occur Friday.

“I expect that’s about right,” she said, refusing to give any hints about who the choice might be.

Finney later tweeted that no announcement is set, however.

Clinton is scheduled to be campaigning in Florida on Friday and Saturday.

For her running mate, the list Clinton is expected to choose from includes Housing Secretary Julian Castro, Sen. Tim KaineTimothy (Tim) Michael KaineOnly four Dem senators have endorsed 2020 candidates Democratic proposals to overhaul health care: A 2020 primer Dems ask Justice Dept to release findings of Acosta-Epstein investigation MORE (D-Va.), Sen. Sherrod BrownSherrod Campbell BrownOnly four Dem senators have endorsed 2020 candidates Budowsky: 2020 Dems should debate on Fox Overnight Health Care: How 2020 Dems want to overhaul health care | Brooklyn parents sue over measles vaccination mandate | Measles outbreak nears record MORE (D-Ohio), Sen. Elizabeth WarrenElizabeth Ann WarrenTrump pushes back on impeachment talk: 'Tables are finally turning on the Witch Hunt!' Warren unveils plan to cancel student loan debt, create universal free college Moulton enters 2020 White House race MORE (D-Mass.), Sen. Cory BookerCory Anthony BookerWarren unveils plan to cancel student loan debt, create universal free college The Hill's Morning Report - Is impeachment back on the table? Booker: Barr's suggestion of spying on Trump campaign 'eroded' public's trust MORE (D-N.J.), Labor Secretary Tom PerezThomas Edward PerezClinton’s top five vice presidential picks Government social programs: Triumph of hope over evidence Labor’s 'wasteful spending and mismanagement” at Workers’ Comp MORE and retired Navy Adm. James Stavridis.

The campaign has been tightlipped about who on the list Clinton is leaning toward, though many of those close to the former secretary of State expect that she will go with Kaine, widely considered the safe choice.

On Monday, a new report said that Castro violated a law prohibiting federal employees from making personal political statements while appearing in an official capacity.

in an interview aired on Tuesday with Charlie RoseCharles Peete RosePress: In defense of Joe Biden Fewer men say sexual harassment in the workplace is major problem: Gallup Susan Zirinsky to replace David Rhodes as first female head of CBS News MORE, Clinton said of Kaine, "he's never lost an election, he was a world class mayor, governor and senator." She called Warren "amazing" for "raising the hard issues that we're going to have to address."

She told Rose she was "looking for someone who can be a world class president of the United States and who can help me govern."