(CNN) First things first: The theme song of the week is Siskel & Ebert & the Movies.

Poll of the week: A new national A new national Quinnipiac University poll finds that former Vice President Joe Biden, Massachusetts Sen. Elizabeth Warren, Vermont Sen. Bernie Sanders, California Sen. Kamala Harris and South Bend, Indiana, Mayor Pete Buttigieg all lead President Donald Trump by significant margins in potential 2020 matchups.

Biden is ahead of Trump by the most (16 points, 54% to 38%), while Buttigeg is up by the least (9 points, 49% to 40%).

What's the point: The Quinnipiac poll was the second probability poll that meets CNN standards and was conducted in August which found Trump down by at least 5 points against all his most likely challengers. In both the The Quinnipiac poll was the second probability poll that meets CNN standards and was conducted in August which found Trump down by at least 5 points against all his most likely challengers. In both the Fox News poll out earlier this month and Quinnipiac's latest, he trailed his most likely challenger, Biden, by double-digits. In fact, in an average of all the August polls (those that meet CNN standards and not), Biden was up by a 49% to 39% margin.

We're still over a year away from the 2020 general election, so don't take these polls to the bank.