.....talk of impeachment has got him nervous.......
And unfortunately it will go no where!
Impeachment is a process that requires strong public support. Support takes time to develop.
If there is 55% or more of Americans strongly favoring impeachment, Obama will be impeached and removed from office.
Obama knows this and he is worried.
55% of the American people, if clustered in states with two Republican Senators, would be insufficient to get the deed done. 34 Senators can block any conviction vote. If they are from same Democrat states that do not support impeachment, the attempt is doomed.