If by chance, Sen. Díaz had won the nomination, the Dems would surely have prevented him from getting any committee assignments once elected (presuming they wouldn’t have attempted to run a write-in Stalinist nominee to keep him from being elected in November). I believe I’m correct in presuming there won’t be a single pro-life Dem come January (presuming Peterson’s defeat in MN) ?
Currently, the only two pro-life Dems in the House are Peterson of MN and Lipinski of IL, with a few other Democrats who cast pro-life votes from time to time (Cuellar of TX being the most helpful, but Langevin of RI, Kaptur of OH and McAdams of UT also vote pro-life once in a while). If Peterson loses (as I expect him to do), there indeed will be no truly pro-life Democrats in the House, something that would have been inconceivable even 10 years ago.