Well according to Wikipedia there are currently 433 members of the House. Two thirds of 433 is 289. From the same source there are 242 GOP members of the House. 289 - 242 = 47 Dims would have to vote for the bill to over ride the veto. Do you third there are 47 Dims who would vote to override?
To get to Obama, it would have to pass the Dem-controlled Senate. Harry will table it there.