Not sure if the web site is still there, but a couple of years ago there was a site that had most of their names and more on it - - -might have even been the Socialists of America (or something similar) site.
This is a another waste of taxpayers $ by the Dims - - and w the usual suspects. I'd say it was a waste of their time, but with this group, it's probably better for the country that they're doing this rather than writing legislation.
I don't understand how they can demand this from the WH. What, if any rights do the congresscritters have over who the WH approves for press briefings? I don't see that this fits under their 'duties' (of course, that's never stopped them before).
That would be the "Progressive Caucus", a wholly owned subsidiary of the Democratic Socialists of America (www.dsausa.org). A listing of these Congressional Bolsheviks appeared of the DSA site until shortly before the 2000 election, when word started getting out about their affiliation. You can still find the list linked to Bernie Sanders' official gubmint website. A quick glance seem to indicate that all the signees to this letter are members of the Congressional Commies. I'm using a friend's computer right now and I don't have that particular URL or link.
BTW, Seattle's own Baghdad Jim McDermott is one of the ranking moonbats of this group.