Barack Obama likened Hillary Rodham Clinton to President Bush for threatening to "totally obliterate" Iran if it attacks Israel and called her gas-tax holiday a gimmick as he tried to fend off her challenge ahead of two pivotal Democratic primaries.Clinton, in turn, stood by both her comment on Iran and her tax proposal as she gave chase in Indiana and North Carolina to the front-runner for the nomination.
The competitors squabbled over the issues — one foreign, one domestic — from a short distance, first during separate appearances on Sunday news shows and then as they courted voters for Tuesday's primaries.