The promise to end abortion is a fake promise - it was made for the sake of securing the vote of social conservatives, who become starstruck by anyone who makes that promise.
Every Republican since Reagan has campaigned against abortion. Not one of them has succeeded in keeping their promise.
Humorously, abortion statistics dropped most over the course of Bill Clinton's presidency.
The hysteria comes from people who believe what the candidate says.
Q: How can you tell a politician is lying?
A: Their lips are moving.
Political hysteria exists on both sides of the aisle. Obama says he'll raise taxes --- and small business owners say they'll need to close up shop, since profits will drop from - say $250,000 to $200,000 (that's hysteria, as well).
