Mass migration brought the German government to its knees – the rest of Europe will follow

Jens Spahn , a senior member of the Christian Democratic Union ( CDU ), raised the possibility.

The CDU are predicted to be the largest party after the next German election.

Spahn is widely expected to return to the cabinet in the next government.

His statement demonstrates the huge change which has taken place in the CDU since it was led by Angela Merkel .

She infamously invited Syrian refugees to come to Germany in 2015 , sparking a European migrant crisis.

Despite claims that these refugees might rescue an ageing continent, only 54 per cent of the 890,000 who arrived in 2015 have jobs.

All eyes will therefore turn to the opposition, to see if they are willing to commit to the measures necessary to restore Britain ’s borders. As Brexit showed, democracy requires national sovereignty. So long as foreign judges have the final say on control of our borders, the problem won’t go away and if we don’t lead the way, others in Europe are preparing to. Sign up to the Front Page newsletter for free: Your essential guide to the day 's agenda from The Telegraph - direct to your inbox seven days a week..