That includes the possibility of fines up to $25,000 per day for ignoring their supenas. Link

Unless they are going to send the Sargent at Arms out as a collector I don't see this going anywhere.

Just more "mallcop" antics.....

...show up
...no
....you have to show up
....no
....hey we're congress....show up
....no
....don't make us hold you contempt....you have to show up
...no
....ok, we are holding you in contempt....now you have to show up
....<<snicker>>...no

etc etc etc