Sequels are known to rarely be equal to the original in just about all categories. In rare exceptions, such as the second star wars movie (the REAL second, not the recent prequel) and the second Godfather movie did they equal the opening acts.
In very rare cases they even eclipse the original- ie the second 'Mad Max' movie, 'The Road Warrior', brought international fame to Mel Gibson. But as a whole their continuation tends to rot out what was a good story.
The Fonda kids never matched old Henry's track record; his grandkid Bridget Fonda gave it a good go but couldn't hold the torch. 'I Love Lucy' set the standards for all TV comedies that followed, but Lucille Ball's later shows never returned to that level of quality.
Bush I could be said to be a mixed bag; he pleased conservatives and hacked off liberals as could be expected. But he carried on the Reagan tradition that enriched the upper class and his own pockets while letting the working and middle class eat cake. However he did keep the country on an even keel.
No matter what anyone says, Bush II was a bomb. It did good at the box office, but just like a delicious chocolate cake that tastes good going down, it did keep you going to the bathroom the whole night. He did deserve an Emmy for successfully portraying himself as a regular, homespun normal guy with his rolled up sleeves ready for work, except that he wasn't normal, wasn't homespun and didn't really do real work for a living.
Rotten Tomatoes gives Bush II three thumbs down (they borrowed one from someone else), calling it 'an incredible disaster, intellectually lobotomizing, choreographed chaos, business Bozoified."
Let's just hope the Bush horror franchise doesn't plan on making 'Bush III- Enter Jeb!'. We haven't gotten over number II yet.
Reviewers are not looking forward to reviewing Clinton II should it ever manage to come out.