Yes. They challenge it by declaring EP, idiot.
So, according to you, the sitting President can NOT challange subpeona's in court less they committ obstruction of Congress? Really? Is that what you want to go with?
Becuase there are plenty of cases in not only the Obama administration doing the exact same thing, but indeed throughout the history of sitting Presidents going all the way back to Washington...So, what makes this different?
Trump isn't challenging the subpoenas in court. They are being ignored.
LOL...It's up to the Democrats to enforce their subpeona's .... Why do you libs always try to turn things on their head?
Or just charge him with obstruction.
It's up to Trump to either comply with the subpoenas, invoke EP or sue to somehow otherwise invalidate the subpoenas. He's done nothing but ignore them and state that he has no intention of complying. That is willful obstruction.
Heh, heh...You clearly have no clue....Here's but one example of the Obama administraion ignoring subpeona's...
"House Republicans say that the Obama administration is ignoring subpoenas for documents related to ObamaCare spending they call illegal.
Ways and Means Committee Chairman
Kevin Brady (R-Texas) and Energy and Commerce Committee Chairman Fred Upton (R-Mich.)
sent a letter to the Department of Health and Human Services (HHS) Tuesday calling on it to comply.
The committees issued the subpoenas on March 29, but Republicans say they have received only one heavily redacted page of one document from HHS in response."
GOP: Administration ignoring ObamaCare subpoenas
Now, should House Republican's have impeached Obama? Because that will be the standard going forward if we follow your misinformed opinion.