WASHINGTON, Sept 16 (Reuters) - The 1.3 million-member

Teamsters union could decide who to endorse in the 2024 U.S.

presidential election as early as Wednesday after members met

Democratic candidate Kamala Harris on Monday, Teamsters

President Sean O'Brien said.

Union representatives met her Republican rival Donald Trump

in January. "We can't kick this can down the road," O'Brien told

reporters after meeting with Harris for nearly an hour.

Most major unions have endorsed Harris, including the United

Auto Workers union. The AFL-CIO, which represents 60 unions and

12.5 million workers, endorsed Harris in July. The Teamsters are

one of the country's largest unions.

O'Brien spoke to the Republican National Convention in July,

but also criticized Trump for suggesting that workers who go on

strike could be fired.

The union will present the results of polling of its members

to the executive board on Wednesday.

Asked if the union could opt not to make an endorsement,

O'Brien said: "We are going to look at any and all options. ...

We need to make sure we make the right decision."

The Teamsters endorsement could be a factor in a handful of

battleground states that will decide the Nov. 5 election,

including Michigan, Nevada and Pennsylvania where union

membership is strong.

He said the polling is significant, but not the only factor

the union will consider in making an endorsement.

"There's no secret that the Teamsters union is very

different than most unions," O'Brien said. "We don't just

represent registered Democrats, we represent registered

Republicans and independents. ... We have to take that into

consideration."

If elected Harris will work with Congress to pass

legislation making it easier to organize and "end union busting

once and for all," her campaign said in a statement.

Harris told the Teamsters "she is committed to continue

fighting for union workers like theirs every day," it added.

O'Brien said union representatives had discussed Amazon.com ( AMZN )

in their meeting with Harris.

The union said earlier on Monday that hundreds of delivery

drivers for Amazon ( AMZN ) across three delivery service partners in

Queens, New York, were demanding Amazon ( AMZN ) recognize their union

and negotiate a Teamsters contract.

O'Brien said they had also talked about proposed legislation

governing the ability of workers to join a union.

The Teamsters, founded in 1903, endorsed Biden in 2020, as

well as Democrats Hillary Clinton in 2016 and Barack Obama in

2008 and 2012, though they sometimes picked Republicans in

earlier elections.