That is marginal popularity

Representative Alexandria Ocasio-Cortez is viewed favorably by the majority of voters in her district, according to a new poll released by Siena College Research Institute.The poll, which surveyed 607 voters by phone in Congressional District 14, which covers portions of The Bronx and western Queens, found that 52 percent of voters viewed Ocasio-Cortez favorably, with 48 percent of all voters and 61 percent of Democrats saying they would vote to reelect her in 2020. The survey found that 33 percent of respondents view her unfavorably.

Not unusual for a first time elected, but it is marginal and she could easily lose it once the bill comes in.  She has gentrifiers as a swing vote, the millennials, who pick up most of the bill, in her district.  She has to get a fair deal for those, especially, they are over burdened.