President Donald Trump took steps to advance construction of the Keystone XL and Dakota Access oil pipelines while foreshadowing a “renegotiation” of terms and insisting that developers use U.S. steel. Trump stopped short of green lighting construction on either project, and reiterated an earlier campaign pledge to seek a “better deal” on TransCanada Corp.’s proposed Keystone XL to transport Alberta oil sands crude into the U.S. On Tuesday, Trump called that “something that’s been in dispute and subject to a renegotiation of terms by us.”