Hillary Clinton 's strong national lead over Sanders is essentially gone and, instead, the Democratic race is incredibly close, according to a national Quinnipiac poll released today.
Clinton received 44 percent of support while Sanders can boast about 42 percent, his highest support in any national poll to date.
This new poll was conducted after the Iowa caucuses , when the polls were too close to call Monday night but, finally, Clinton eked out a win over Sanders.
The poll also shows that if the general election came down to Clinton and Marco Rubio , voters said they would vote for Rubio over Clinton, 48 to 41 percent.