Mr Gingrich, who was the top candidate in the state only weeks ago, has taken a tumble after a barrage of negative-themed ads funded primarily by groups that support rival Mitt Romney, the former Massachusetts governor.
The former speaker of the House of Representatives is now polling around fourth place in Iowa, the first state to hold a nominating contest in the 2012 election.
Advertisement – story continues below
Asked in a Reuters interview whether coming in fourth or lower on Tuesday would make him consider dropping out, Mr Gingrich said, “No.”
Mr Gingrich, whose campaign has earned a reputation for disorganization, said he had enough campaign funds to propel him through New Hampshire and on to South Carolina, the next two states that hold nominating contests.
“By the time we get to South Carolina, it will be very clear the gap between a Massachusetts moderate who hides his record behind negative ads and a conservative who’s talking about positive ideas,” Mr Gingrich said.
Read More at The Telegraph Foreign Staff, The Telegraph