U.S. Democrat Hillary Clinton is the only presidential contender scheduled to attend a reception next week organized by a leading political association of Asian Americans and Pacific Islanders as she seeks to consolidate her support from minority voters.

The Asian Pacific American Institute for Congressional Studies Leadership Network, a nonpartisan group that seeks to get Asian Americans elected to political office, said on Wednesday that it had invited all presidential hopefuls to the event in Washington, but Clinton was the only one to accept.

The campaigns of Clinton’s Democratic rival Bernie Sanders and Republican hopeful Ted Cruz did not commit, and the campaign of Republican front-runner Donald Trump campaign responded that he was unlikely to attend, Floyd Mori, president and chief executive of the leadership network said.

Republican John Kasich’s campaign did not respond.