Vermont Sen. Bernie Sanders holds substantial leads in the two largest states to vote in next week’s Super Tuesday lineup of primaries, according to new CNN polls conducted by SSRS in California and Texas.

In Texas, Sanders holds 29% support among likely primary voters, former Vice President Joe Biden has 20%, former New York Mayor Michael Bloomberg stands at 18% and Massachusetts Sen. Elizabeth Warren is at 15%. No other candidate reaches double-digits. Sanders (+14) and Bloomberg (+13) have posted the largest gains since a December CNN poll, while Biden has slipped 15 points. Warren has held roughly even.