Charles G. and David H. Koch, the influential and big-spending conservative donors, appear to have a favorite in the race for the Republican presidential nomination: Gov. Scott Walker of Wisconsin.
On Monday, at a fund-raising event in Manhattan for the New York State Republican Party, David Koch told donors that he and his brother, who oversee one of the biggest private political organizations in the country, believed that Mr. Walker would be the Republican nominee.
“When the primaries are over and Scott Walker gets the nomination,” Mr. Koch told the crowd, the billionaire brothers would support him, according to a spokeswoman. The remark drew laughter and applause from the audience of fellow donors and Republican activists, who had come to hear Mr. Walker speak earlier at the event, held at the Union League Club.
Two people who attended the event said they heard Mr. Koch go even further, indicating that Mr. Walker should be the Republican nominee.