Trump ratings compared to previous presidents after one year

We all know Trump is the least popular president in recent times at this point in his administration.  Here are the numbers:

CNN POLL
Presidential Approval Rating
Dec of First Year

Bush, 2001 86%
Kennedy, 1961 77%
Bush, 1989 71%
Eisenhower, 1953 69%
Nixon, 1969 59%
Carter, 1977 57%
Obama, 2009 54%
Clinton, 1993 54%
Reagan, 1981 49%
Trump, now 35%

— Manu Raju (@mkraju) December 19, 2017

 I wonder how long the Republicans will put up with him now that they have achieved their most desired decades long dream of cutting taxes on the rich?  Any time they want him gone he should be easy to impeach on a number of grounds, from violation of the emoluments and bribery clauses of the constitution, to aiding a hostile foreign country to undermine U.S. elections, to obstruction of justice trying to prevent investigations into Russian interference, to....whatever his latest authoritarian disregard for the rule of law happens to be an any given day.