I don’t have time to collate it right now, but the same poll from CBS that had Cruz in 8th place last week with his negatives as high as his positives now has him in 5th place on positives with more importantly his negatives cut in half:
Would you vote for Ted Cruz: yes 37%, no 22%.
That’s a poll of republicans.
And. This poll was taken during his announcement.
This is the same poll that Rove was white boarding about Cruz last week.