Doncaster gained ground on League Two leaders Walsall, who lost to Swindon
A goal either side of half-time from Rob Street helped promotion-chasing Doncaster Rovers on their way to victory over Newport County at Eco-Power Stadium.
County's struggles at set pieces continued, as a Doncaster corner was not cleared after 34 minutes, and Street was on hand to poke home the ball from close range.
Rovers doubled their lead within a minute of the restart. Luke Molyneux's volley hit the post before falling to Street, who back-heeled the ball past Nick Townsend at the second attempt.
Molyneux was not to be denied with another volleyed effort on 78 minutes, as he fired low across the goal and into the bottom right corner.
Victory for Doncaster keeps them in the League Two automatic promotion places, above fourth-place Notts County by three points.
Newport drop one place to 17th after a second successive defeat.
