Did Glenn Simpson waive his 5th Amendment rights with his exparte conversation with Adam Schiff?

PJ Media:

Rep. Adam Schiff (D-Calif.), the new House Intelligence Committee chairman, is facing calls to recuse himself from the Russia investigation after photos emerged of him at an undisclosed meeting (colluding?) with Fusion GPS founder Glenn Simpson, a key figure in the Russia collusion scandal.
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This comes as the Democrat-led committee is massively expanding the Russia probe to include Trump's business dealings.

The photos in question were taken at a prestigious Aspen security conference last July, The Hill's John Solomon reported. They show Schiff wearing a "sport coat and open-neck dress shirt, and Simpson wearing casual attire," according to Solomon, who has seen the pics.

Fusion GPS, which was hired on behalf of the Hillary Clinton campaign and the Democratic National Committee (DNC) to find dirt on then-candidate Donald Trump, has a long history of smearing Republicans for profit. In 2012, for instance, Barack Obama's presidential campaign hired Fusion GPS to dig up dirt on Republican presidential candidate Mitt Romney, as well as his donors, to literally create an enemies list.
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While this story focuses on whether Schiff should be allowed to pursue a House Intelligence Committee investigation, his conversation with Simpson also has implications for Simpson who refused to testify in a hearing chaired by Deven Nunes.  If he did indeed waive his 5th Amendment rights, the Senate should subpoena him and get this testimony on Fusion's business dealings with the Russians and its part in pushing the Russian collusion story which became part of a Democrat coup attempt.

Monica Showalter makes the case for Schiff being required to recuse himself from the investigation for the same reasons Jeff Sessions had to do so for merely shaking hands with a Russian during the campaign.