Because these three socialists are leading the party. Have you not been paying attention? Every single serious Democrat candidate for President has gone on record as endorsing AOC's Green New Deal and you can bet they're all begging for AOC's personal endorsement, which will be worth millions of votes.
They are absolutely a major force in US politics today.
The days of Nancy Pelosi Democrats are fading into history. The new players on the left will be Justice Democrats, Brand New Congress Democrats, Saikat Chakrabarti, Cenk Uygur, and the people they mold into younger, better-looking versions of Bernie Sanders.
After President Trump, AOC is the most popular politician in America right now.
mold into younger, better-looking versions of Bernie Sanders.
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How many people could fit that description to replace Bernie?
Around 310 million.