Recently, Reid falsely tweeted that a factoid about the 2000 presidential election results served as the origin of the name for the popular poll-tracking site FiveThirtyEight. On Monday evening, Reid wrote, “Here’s the thing: the reason there’s a thing called @FiveThirtyEight is because 538 was the margin in FL when the Republican SCOTUS reversed the 2000 election during a recount, making Dubya the president. That’s the kind of margin where races can flip. That’s not what’s up now.”

However, Reid was mistaken, as Tapper pointed out on Tuesday. On his Twitter account, the CNN correspondent wrote on a retweet of Reid’s message: “This isn’t accurate. The margin in Florida was 537 votes (538 is the number of electoral college voters).”

Tapper wasn’t done there. He also added that “the SCOTUS didn’t reverse the 2000 election” and “Bush always led in every count.”

As Tapper also indirectly pointed out, the website FiveThirtyEight is actually named after the number of electors in the Electoral College. Across all 50 states and the District of Columbia, there are a total of 538 electoral votes (and 538 electors). Though each state receives its number of electoral votes based on population, every state has at least 3. Hence, why Joe Biden or Donald Trump needed at least 270 electoral votes to win the election—that makes a simple majority of 538.

Of course, other Twitter users let Reid hear it for her mistake. The below user couldn’t believe she hadn’t deleted the tweet yet. (It was still up as of press time.)

This writer pointed out there is an HBO documentary that came out this past October about the 2000 election that’s actually called 537 Votes:

Some came down more harshly on Reid.

Another pointed out that Reid was once a blogger based in Florida. (She operated her blog, The Reid Report, from 2000 to 2014. She was also a columnist at the Miami Herald from 2003 to 2015.)

The well-known journalist Glenn Greenwald seemed to take particular relish in attacking Reid.

Some people had fun at Reid’s expense by attaching popularly used numbers to incorrect origins/meanings.

This user also played the numbers game:

This commenter took advantage of the occasion to bring up an unpleasant moment from Reid’s past, when homophobic remarks were posted on her blog. On The Reid Report, there were stories containing lines like “most straight people cringe at the sight of two men kissing” and “adult gay men tend to be attracted to very young, post-pubescent types.” One post even seemingly owned up to her feelings by admitting: “Does that make me homophobic? Probably.” After first claiming she was the victim of a hacking attack, Reid eventually apologized.

Nate Silver, the founder of FiveThirtyEight, who has been the source of much derision himself lately due to inaccurate poll predictions pertaining to the 2020 presidential election, has yet to comment on Reid’s error.