"check the record about which President has done better in achieving and retaining a majority in Congress"
You mean Reagans 49 State Win Over Mondale?
A feat that won't likely be duplicated until another Reagan like nominee comes around.
btw, check the records and see where poll numbers were.
I believe the average loss in the 6th year of a presidency is usually somewhere between a 30 and 40 seat loss in the House.
Oh.........and at this point in the 80 election, Reagan was going to lose to Carter according to the polls.
Your memory is somewhat flawed.