Dan Janison Melville. N.Y. Tuesday January 26, 2010. Daniel Janison,

Dan Janison has been a columnist at Newsday since 2007.

For Hillary Clinton, every win seems coupled to a setback.

For every up in her campaign, a down seems to follow.

Tuesday was a microcosm.

Bernie Sanders stood in Portsmouth, New Hampshire, with a beaming Clinton beside him, giving up the ghost. She gave a speech that seemed to go over well enough with a mixed audience of their separate supporters. Here for all to see was a lock on the nomination that eluded her eight years ago.

But in Washington, D.C., trouble kept brewing on Capitol Hill. Sanders may have been “sick and tired” months ago of hearing about her emails, but the Republican majority of the House clearly is not.

Reps. Jason Chaffetz (R-Utah), chairman of the House Oversight Committee, and Bob Goodlatte (R-Virginia), who chairs the House Judiciary Committee, said in a letter to the U.S. attorney:

advertisement | advertise on newsday

“Evidence collected by the FBI during its investigation of Secretary Clinton’s use of a personal email system appears to directly contradict several aspects of her sworn testimony” to Congress.

They want a perjury investigation.

The basis of their demand was easy enough to see. Clinton had claimed nothing in her emails was marked classified at the time she received it. But FBI Director James Comey last week told the committee that “a very small number of the emails containing classified information bore markings indicating the presence of classified information.”

Earlier last week, it was Comey himself who gave Clinton the good-news, bad-news of the news cycle.

Good news for her: She wasn’t to be prosecuted based on what his probers found.

Bad news for her: Comey said she and staff were “extremely careless” in handling State Department materials — hardly a resume-builder.

The week before, her Republican opponent, Donald Trump, began contradicting himself on the matter of Muslim immigration and visited Scotland to promote his business, giving his detractors new grist for criticism.

But aspiring first spouse Bill Clinton, a serial schmoozer, walked over to Attorney General Loretta Lynch at an airport in Phoenix while she was due to decide how to proceed on the email case. They had what proved to be a controversial chat for half an hour that left everyone involved with explaining to do.

advertisement | advertise on newsday

To skeptics, Lynch sounded less than persuasive when she assured congressional members on Tuesday, “This matter was handled like any other matter.”

So in that case, Trump gave her the up and Bill helped provide the down.

Her next seesaw might be just around the corner.