The agreement could increase U.S. exports by 20 percent, while cutting tariffs and red tape, Abney said in a "Squawk Box" interview. "It [also] opens up markets to U.S. companies, especially those small and mid-sized businesses companies."
President Barack Obama on Friday said the White House will be sending Congress the bill to implement the free trade deal with 11 nations including Japan, Singapore, and Australia.
"The [Obama] administration is pushing this," said Abney. "They, in fact, gave the 30-day notice of intent to act just last week. So now we believe there's a real good opportunity between now and the end of the year [to pass TPP]."
Trump has portrayed Clinton as flip-flopping on the Trans-Pacific Partnership, which she had supported during her tenure as Obama's secretary of state.
Clinton has said she reconsidered that support when she looked at the final deal.