Ramsey, 27, is out of contract at the end of the season and has seen the offer of a new deal rescinded by Arsenal.
The Welshman has this week claimed that he won't leave the club in January, meaning he is likely to be available on a free transfer next summer.
United tried to sign Ramsey in 2008 and announced on their website they had agreed a deal with Cardiff for the then 17-year-old before he chose to join Arsenal.
Ramsey scored in Arsenal's 5-1 win over Fulham earlier this month and has made over 300 appearances for Arsenal in all competitions.
Merkel's Bavaria ally CSU suffer 'massive losses'
Pointing to goings-on in Berlin, Soeder said, "It's not so easy to uncouple yourself from the national trend completely". The AfD's showing marked the first time the anti-immigration party won Parliamentary seats.
"I don't really know what is happening at Arsenal".
Liverpool and Chelsea target Aaron Ramsey is open to joining a "top six" club this summer, with the Blues watching his situation closely.
"But I don't know how far Arsenal will go in terms of giving him a huge contract".
With the likes of Juventus also keen to sign the player, Arsenal fans will be hoping that the midfielder turns down Premier League interest to move overseas, but that may not be the case. These things were once my responsibility, but not any more.