Walker continues to lead the field with 20%, although that’s down from his 25% standing a month ago. Bush continues to poll at 17%, followed by Cruz at 16%, Ben Carson and Rand Paul at 10%, Marco Rubio and Mike Huckabee at 6%, Chris Christie at 4%, and Rick Perry at 3%.

Cruz has really caught fire with voters identifying themselves as ‘very conservative’ since his announcement. After polling at only 11% with them a month ago, he now leads the GOP field with 33% to 25% for Walker and 12% for Carson with no one else in double digits. Last month Walker led with that group and almost all of the decline in his overall support over the last month has come within it as those folks have moved toward Cruz. Cruz’s name recognition with Republican voters has increased from 61% to 82% since his announcement. Besides Cruz the other candidate with momentum over the last month is Rand Paul. His support has increased from 4% to 10%.

Two candidates are clearly losing ground. The biggest is Ben Carson, who’s dropped from 18% to his new 10% standing.