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During an interview with New York Times opinion writer Ezra Klein, former President Barack Obama took aim at the filibuster the Senate procedural tool that allows a minority of 41 senators to block action on a bill on the grounds that its undemocratic.

"The filibuster, if it does not get reformed, still means that maybe 30% of the population potentially controls the majority of Senate seats," Obama told Klein. "And so if you say that 30% of the country is irreconcilably wrong, then its going to be hard to govern."

It wasnt the first time that Obama has criticized the filibuster since leaving office. At the eulogy for John Lewis, the civil rights activist and congressman from Georgia who died in 2020, Obama called the filibuster a "Jim Crow relic."

In the transcript of the interview with Klein, this passage about the filibuster included a link to a Washington Post analysis of the differences between population and representation in the Senate. However, the Post article doesnt precisely support what Obama said.

We reached out to Obamas post-presidential press office but did not hear back. Instead, we crunched the numbers from the 2020 Census and concluded that Obamas overall point had merit but that he misstated the details.

In particular, Obama said that states with a small percentage of the population could control "the majority of Senate seats." Given todays partisan tendencies in each state, controlling an actual majority of seats would not be feasible for that small a percentage. However, a small percentage of the population could control enough seats to successfully wield the filibuster, which effectively gives them control over whether a majority can pass legislation.

What the Post article said

The Constitution gives each state two senators, regardless of population, so Wyoming and Vermont have the same representation in the chamber as California and Texas, which have more than 30 times as many people.

The Post article cited in the transcript was headlined, "By 2040, two-thirds of Americans will be represented by 30% of the Senate." Thats 20 years in the future, but the article goes on to note that even today, the largest 15 states have 66% of the nations population, but just 30 seats in the Senate.

While the articles conclusion is generally consistent with Obamas point, it doesnt have anything to do with the filibuster or the 60-vote threshold to end one. Rather, the article looked at representation throughout the entire chamber.

More importantly, the headline finding from the article is purely numerical, and ignores which party currently holds the smallest states Senate seats. In reality, those 35 smaller states have selected a mix of Republican and Democratic senators, so these states would not be likely to form a unified coalition.

Taking into account party affiliation

But there are ways to look at the question of whether senators from a bloc of smaller states could effectively use the filibuster to steer the Senate for one party. One way is to ask: What is the smallest share of the U.S. population whose senators could block legislation by mounting a successful filibuster, once you factor in the prevailing party affiliation?

For this analysis, we used the current partisan breakdown of the Senate. The results could change if seats flip in the next election, or if partisan trends in some states evolve.

We looked at the smallest 21 states that currently have two senators from the same party 21 because thats the minimum number of states that would allow one party to prevail in a filibuster, and the same party because in the six states with mixed delegations, the senators votes would likely cancel each other out. (We counted the Senates two independent members, Angus King of Maine and Bernie Sanders of Vermont, as Democrats, since they caucus with the Democrats.)

The 21 smallest states that have two Republican senators account for 29% of the U.S. population. So, by themselves, these states could muster 42 votes to sustain a filibuster, thereby overruling the 71% of the population represented by the other 58 senators.

The 21 smallest states with two Democratic senators account for 39% of the U.S. population, meaning that Democrats from these states could mount a filibuster that thwarts senators representing the remaining 61% of the population.

So Obamas remark is a reasonable assessment of how much muscle a fraction of states can flex in order to block legislation in the Senate.

How much population is needed to control a majority of Senate seats?

But Obamas claim that "30% of the population potentially controls the majority of Senate seats" overreaches. In the Senates current makeup, 29% to 39% of the population could control 42 seats but not a majority of seats in the 100-seat chamber.

In reality, neither party today can muster an actual majority,51 seats,using just states that have unified partisan control of their Senate delegation.

Adding Texas and California to the previous tally, the 22 states that currently have two Republican senators represent 38% of the population, and the 22 states with two Democratic senators represent 51% of the population. (The other six states have mixed representation.)

These groupings of states produce only 44 seats for either party not a majority.

In the big picture, however, Obama has a legitimate point, said Josh Ryan, a Utah State University political scientist and specialist in Congress.

"Essentially a very small population of the country gets to veto legislation preferred by a large majority," Ryan said. "They don't get to control the Senate, but they get to control what passes the Senate."

Our ruling

Obama said, "The filibuster, if it does not get reformed, still means that maybe 30% of the population potentially controls the majority of Senate seats."

In the Senates current makeup, senators representing 29% to 39% of the U.S. population would be sufficient to mount a filibuster and block a vote on legislation, in a sense controlling what can be passed in the chamber.

However, an alliance of states with a combined population that small couldnt secure a majority of seats in the chamber, unless you ignore todays strong partisan leanings in most states.

We rate the statement Half True.

Read more here:
Fact-checking Barack Obama on the Senate filibuster - PolitiFact