Soraya Sarhaddi Nelson

Updated at 4 p.m. ET

Richard Grenell has been the U.S. ambassador to Germany for barely a month, but already politicians on both sides of the Atlantic are demanding he be recalled.

On Thursday, Hamburg became the first city in Germany to ban diesel vehicles on its streets — at least in part. But many Germans question whether the limited ban is an environmental milestone, as the city claims, or a political shell game that will ultimately create more pollution.

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MARY LOUISE KELLY, HOST:

Germany waited nearly 16 months for the Trump administration to send a new ambassador to Berlin. But Richard Grenell managed to offend many Germans the day he arrived by posting this note on Twitter:

"As @realdonaldtrump said, US sanctions will target critical sectors of Iran's economy. German companies doing business in Iran should wind down operations immediately."

For Germans, Friday's working session between President Trump and Chancellor Angela Merkel at the White House proved unexpectedly cordial and, at times, odd.

The chancellor, who is usually reserved, looked surprised when Donald Trump greeted her with a kiss on each cheek, a move the president seemed to have picked up from the French during the first state visit by France's president, Emmanuel Macron, earlier this week.

Updated at 12:38 p.m. ET

Solidarity marches to protest anti-Semitism are planned in Berlin and other German cities on Wednesday after an attack last week on a man wearing a yarmulke sparked widespread outrage.

The attack in Berlin, caught on video, involved a 21-year-old man wearing a Jewish skullcap, also called a kippa, who was suddenly attacked by an assailant calling out "Yahudi!" — the Arabic word for Jew.

The man being attacked replies, "Jew or no Jew you have to deal with it."

For four years, the United States and the European Union have imposed sanctions on Russia over its aggression in Ukraine. The measures restrict travel and target assets of key individuals linked to the Kremlin.

But Ukraine says there's one major confidant of Russian President Vladimir Putin whom the Europeans should consider sanctioning, but haven't — former German Chancellor Gerhard Schroeder.

Hungarian Prime Minister Viktor Orbán and his populist Fidesz party easily swept to victory on Sunday in a parliamentary election that saw the highest turnout of voters in more than a decade.

It will be the third successive term for Orbán, who is the longest-serving prime minister in post-communist Hungary; it's the 54-year-old's fourth term overall. His party is projected to regain its two-thirds majority in the 199-seat parliament.

What do a chicken, gorilla, invisible man and Santa Claus have in common? They are all candidates on ballots that will be cast during parliamentary elections in Hungary on Sunday.

These costumed humans belong to a satirical political party started in Hungary in 2006. It is called "Two-Tailed Dog," known by its Hungarian acronym MKKP, and is fielding candidates in various districts for the first time in nationwide elections.

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