“It is true that when you run to succeed a two-term president of your own party, you have a historical headwind blowing against you,” Clinton told Hewitt.
Tell that BS to Bush Sr.
Not if you succeed a successful president. Then you're a shoe in. That's why Bush Sr. got in and Hillary didn't. Reagan was successful and Obama was a failure. Bush Sr. was a failure, that's why he got turned out. That's actually quite rare to not get a second term now, even Barry managed to pull it off even after failure after failure.
It only looks like a headwind because most presidents are failures for the most part.