GOP leadership is threatening to impeach trump if he pardons Assange apparently.
If true, then this is nothing, but more proof of how the leaders of the US empire really control everything. Assange has the goods to spill the beans, hence, he, like Snowden, are imperial enemies #1 and #2, respectively, in the eyes, of the US empire.
You can be sure that Trump has been warned not to cross the empire's bottom line. For example, Trump has not:
1. Authorize an audit of the FED
2. Stopped all the illegal wars and occupations abroad
3. Closed the borders to illegal immigration
4. Pardoned Assange and Snowden
5. Drain the Swap
6. Clean-up the US electoral process
7. PROSECUTE THE CLINTONS
I really wished he would have and I do believe Trump was allowed some token, but reversible success (e.g., Supreme Court). However, I suspect he was indirectly told about the Kennedy treatment, if he pushed too far, which could explain why he never went all the way to accomplish the above sample list.