United States general election

FILE - In this Dec. 5, 2018 file photo, Leslie McCrae Dowless Jr. poses for a portrait outside of his home in Bladenboro, N.C. The Republican in the nation’s last undecided congressional election said Monday, Feb. 11, 2019 he recruited a political operative now at the center of a ballot fraud investigation because he produced election results in his rural North Carolina county and other Republicans vouched for him. Mark Harris said he didn’t know before November’s election that state elections board investigators found evidence that operative Dowless Jr. may have illegally handled ballots in 2016. (Travis Long/The News & Observer via AP, File)

Chairman of House Ways & Means Committee Oversight Subcommittee Rep. John Lewis, D-Ga., speaks with Ranking Member Mike Kelly, R-Pa., during a hearing on proposals to compel presidents and presidential candidates to make public years of their tax returns on Capitol Hill, Thursday, Feb. 7, 2019, in Washington. But the burning question is what Democrats might do more immediately to get such files from President Donald Trump. (AP Photo/Jose Luis Magana)

FILE - In this Nov. 6, 2018, file photo, then-Arizona Republican senatorial candidate Martha McSally, speaks with voters, at Chase's diner in Chandler, Ariz. he Federal Election Commission says Arizona Sen. Martha McSally may have accepted $270,000 in campaign contributions that exceeded legal limits. Federal candidates can collect $2,700 from a single donor during a primary election and an additional $2,700 from that same person during the general. But agency flagged dozens of contributions to McSally that appear to exceed those limits. (AP Photo/Matt York, File)

In this Jan. 23, 2019, photo, a view of the White House in Washington. As President Donald Trump’s approval rating falls, the Republican Party is grasping him ever tighter. Gathering in New Mexico, the Republican National Committee’s governing body will take the unusual step Friday of voting to declare the party’s “undivided support” for Trump and his “effective presidency.” (AP Photo/Susan Walsh)

FILE - In this Nov. 7, 2018 file photo Republican Mark Harris speaks to the media during a news conference in Matthews, N.C. The North Carolina board investigating allegations of ballot fraud in a still-unresolved congressional race between Harris and Democrat Dan McCready could be disbanded Friday, Dec. 28 under a state court ruling in a protracted legal battle about how the panel operates. The state Elections Board has refused to certify the race between Harris and McCready while it investigates absentee ballot irregularities in the congressional district stretching from the Charlotte area through several counties to the east. Harris holds a slim lead in unofficial results, but election officials are looking into criminal allegations against an operative hired by the Harris campaign. (AP Photo/Chuck Burton, File)

FILE - In this Nov. 7, 2018 file photo Republican Mark Harris speaks to the media during a news conference in Matthews, N.C. The North Carolina board investigating allegations of ballot fraud in a still-unresolved congressional race between Harris and Democrat Dan McCready could be disbanded Friday, Dec. 28 under a state court ruling in a protracted legal battle about how the panel operates. The state Elections Board has refused to certify the race between Harris and McCready while it investigates absentee ballot irregularities in the congressional district stretching from the Charlotte area through several counties to the east. Harris holds a slim lead in unofficial results, but election officials are looking into criminal allegations against an operative hired by the Harris campaign. (AP Photo/Chuck Burton, File)

FILE - In this Nov. 7, 2018 file photo Republican Mark Harris speaks to the media during a news conference in Matthews, N.C. The North Carolina board investigating allegations of ballot fraud in a still-unresolved congressional race between Harris and Democrat Dan McCready could be disbanded Friday, Dec. 28 under a state court ruling in a protracted legal battle about how the panel operates. The state Elections Board has refused to certify the race between Harris and McCready while it investigates absentee ballot irregularities in the congressional district stretching from the Charlotte area through several counties to the east. Harris holds a slim lead in unofficial results, but election officials are looking into criminal allegations against an operative hired by the Harris campaign. (AP Photo/Chuck Burton, File)

In this Monday, Oct. 29, 2018, photo, U.S. Sen. Kamala Harris, D-Ca., leaves a campaign event at Miami Dade College in Miami. As she nears a decision on whether to seek the presidency, California Sen. Kamala Harris is striking a delicate balance on what could be a hurdle in a Democratic primary: her past as a prosecutor. (AP Photo/Lynne Sladky, File)