The chart above is from the Morning Consult Poll. It compares the national support of Democratic candidates before and after the Las Vegas debate last Wednesday.
The before sample was done between February 12th and 17th of 7,750 likely Democratic primary voters, with a 1 point margin of error.
The after sample was done on February 20th of 2,609 likely primary voters, and has a 2 point margin of error.
Only one candidate showed a difference between the polls that exceeded the margin of error -- Michael Bloomberg dropped three points in the poll done after the debate.
