Goldman Sachs Group Inc. employees gave $107,000 to Marco Rubio’s presidential campaign in the final three months of the year, a 50 percent jump from the previous two quarters, as support for Jeb Bush faded.

The contributions mark a shift at the investment bank, where employees gave a combined $773,000 to Bush’s campaign committee, leadership PAC and the super-PAC backing him since the opening months of the campaign. In the fourth quarter, Bush only got two contributions from Goldman Sachs donors, totaling $2,950. The firm ranks among the 15 biggest donors to federal candidates and committees dating back to 2001, according to the Center for Responsive Politics.

The race for the Republican nomination has confounded supporters of establishment candidates like Bush and Rubio as front-runner Donald Trump’s dominance in the polls and the field of more than a dozen candidates made it hard to stand out or even pick a target to attack. Bush has floundered, currently in fifth place in Iowa, fourth in New Hampshire and unable to crack single digits in national polling since last August, according to RealClear Politics.