Some people think so, evidently, as reported here:
'According to personal tax returns released during his 2012 Senate bid, Cruz contributed less than 1% of his income to charity between 2006 and 2010 — a far cry from the 10% most evangelical leaders believe the Bible demands. ... “He was never particularly religious as far as I knew,” said one aide who worked for him in the Texas solicitor general’s office. “I’m not even sure he went to church.”'
