Sen. Ted Cruz (R-TX), fresh off a bump in the polls, used his new visibility on Monday to ask supporters to help Wisconsin Gov. Scott Walker pay off debt accrued during his failed Republican presidential bid.

Cruz called on his “#CruzCrew” to help the governor pay off his nearly $1 million campaign debt, tweeting a snippet from a Walker fundraising email soliciting donations to cover “unavoidable campaign debt.”

In bold type, the email calls paying off the debt “the only thing to do,” and promises those contributing at least $30 a limited edition lapel pin from Walker’s now-defunct campaign—a collector’s item since the governor left the race in September amid dismal poll numbers and dwindling cash flow.