Washington DC, July 15 -- US Senate Democrats on Tuesday (local time) blocked an USD 1.15 trillion Pentagon policy bill, opposing its advancement over concerns about US President Donald Trump's handling of the Iran war and seeking greater restrictions on the administration's military actions, Politico reported.

According to Politico, the National Defence Authorisation Act (NDAA) failed to secure the 60 votes required to move forward to Senate debate, with the procedural vote ending 50-46.

All Democrats present voted against advancing the legislation.

The move dealt a setback to Republicans, who had sought approval of the defence policy bill as part of efforts to advance Trump's record-level defence budget proposals.

The NDAA is one of...