Members of Massachusetts' all-Democratic congressional delegation are skeptical of President Barack Obama's legislation to authorize military force against Islamic State fighters.

Obama is seeking a three-year authorization for the use of force against the militants or successor groups, without regard to international boundaries.

Sen. Elizabeth Warren said she's concerned about the rise of the group, but doesn't want America dragged into another ground war in the Middle East.

Rep. Seth Moulton, a Marine veteran who served four tours in Iraq, said he can't back the strategy unless there's also a plan to ensure long-term success that includes political and diplomatic efforts.

Rep. Stephen Lynch said he can't support the request while Rep. Joseph Kennedy said he was concerned about what he called Obama's failure to clearly define the mission's parameters.