PARIS — Marine Le Pen, the French far right’s presidential candidate, has never hidden her admiration for President Vladimir V. Putin of Russia, and on Friday she met with him in the Kremlin.

Russian television broadcast images of Ms. Le Pen, gesticulating energetically across the table from a disengaged-looking Mr. Putin. Earlier, she called for “developing relations” with Russia and “cooperation” in antiterrorism. Both were nods to her presidential campaign platform, which advocates closer ties with Mr. Putin, friendliness toward President Trump and rejection of the European Union.

The meeting highlighted the potential for a general realignment of relations with Russia, even at a time when it has been accused of meddling in Western elections through computer hacking and the promotion of fake news, sowing alarm on both sides of the Atlantic.

The Trump administration has shown itself sympathetic to Moscow, to the extent that pre-election contacts between the two sides are being investigated in the United States. In a crucial election year in Europe, campaigns are now peppered with parties and candidates that could sharply redirect ties with Moscow.