Malcolm Tucker is a brilliant character.
House of Cards: the British version I watched a decade ago it is alot shorter and tightly written I think it is 10-15 hours total.
However my favourite character from a political drama, possibly my favourite TV character is
Sir Humphrey Appleby,
Yes Minister
"Yes Minister: A Question of Loyalty (#2.7)" (1981)
Betty Oldham: Look, Sir Humphrey, whatever we ask the Minister, he says is an administrative question for you, and whatever we ask you, you say is a policy question for the Minister. How do you suggest we find out what is going on?
Sir Humphrey Appleby: Yes, yes, yes, I do see that there is a real dilemma here. In that, while it has been government policy to regard policy as a responsibility of Ministers and administration as a responsibility of Officials, the questions of administrative policy can cause confusion between the policy of administration and the administration of policy, especially when responsibility for the administration of the policy of administration conflicts, or overlaps with, responsibility for the policy of the administration of policy.
Betty Oldham: Well, that's a load of meaningless drivel. Isn't it?