The left gears up to grow its numbers in Congress

Progressives spent 2021 getting rolled in election after election, losing congressional races and high-profile mayoral contests across the map.

Tuesday in Texas marks their first chance to mount a comeback.

Left-wing heavyweights are rallying around a slate of candidates running in congressional primaries from Dallas to Laredo. Sen. Elizabeth Warren (D-Mass.) and Rep. Alexandria Ocasio-Cortez (D-N.Y.) flew to Texas to campaign for two of them. Sen. Bernie Sanders (I-Vt.) texted his huge fan base to raise money. Justice Democrats and the Working Families Party, two progressive groups, have aired TV ads.

The left is hoping to...