His explanation has done little to appease ECR leaders, who are firmly aligned with Ukraine. The group has strongly condemned Russia’s invasion and has consistently called for unwavering support to Kyiv.

“By travelling to Putin’s Russia, Fernand Kartheiser has crossed a red line for the ECR Group. We will take decisive action to terminate his group membership as soon as possible,” said co-chairmen Nicola Procaccini and Patryk Jaki in a joint statement to Euronews.

Kartheiser’s expulsion could be made official as early as next week during a group meeting, although attendance in Brussels is currently low. According to internal rules, an absolute majority of ECR members must vote in favour of removal for the action to proceed.

In a written statement, an ECR spokesperson reiterated the group’s stance: “We continue to emphasise our backing for the sovereignty, territorial integrity, defence and independence of Ukraine.”

The visit has sparked criticism not only for its timing, as Russia’s war in Ukraine continues, but also for potentially undermining EU unity on foreign policy. Kartheiser’s actions have further isolated him within the ECR, a group that has consistently advocated strong transatlantic cooperation and firm opposition to Russian aggression.