And once inside, the French President touched Donald Trump's leg multiple times in an awkward attempt to justify his call for a European Army criticised and taken as an "insult" by the American leader.
"We have to protect ourselves with respect to China, Russia and even the United States".
Trump is due in the French capital along with around 70 other leaders for a ceremony on the Champs-Elysees on Sunday morning to mark the 100th anniversary of the end of the war.
OTHER HIGHLIGHTS: Macron, foreign VIPs and high school students will gather at the Tomb of the Unknown Soldier under the Arc de Triomphe and light the eternal flame that is rekindled every night at the memorial engraved with the words: "Here rests a French soldier who died for the nation".
On Sunday, Trump is scheduled to visit a cemetery in the Paris suburb of Suresnes.
Mr Macron said he agreed that "we need a much better burden-sharing within Nato" - the US-led alliance.
President Donald Trump Threatens to Revoke White House Access for More Reporters
Many on Twitter were quick to point out that Ryan is the third African-American female journalist Trump has gone after this week. Fox Business Network's Trish Regan said it makes no sense that Ryan thinks it has anything to do with her gender or race.
Macron told Europe 1 radio that the "main victim" of the U.S. withdrawal from the INF accord was Europe and its security.
Trump shot off an angry tweet about Macron before their latest meeting on Saturday in Paris.
David Frum, once a speechwriter for President George W Bush, tweeted that he thought it was "incredible" that a president would not pay respects to the USA servicemen who died in France during the First World War. "Is there anything better to celebrate than the end of a war, in particular that one, which was one of the bloodiest and worst of all time?" he tweeted. The White House cited a scheduling conflict, saying the president instead would attend a Veterans Day ceremony to pay respects to US soldiers who died on French soil.
President Macron has already warned that Europeans can no longer rely on the USA to defend them, and he revived the theme on Tuesday, in response to President Donald Trump's decision to pull out of a 1987 nuclear treaty with Russian Federation, banning medium-range ground-launched missiles. Trump added that he and Macron are "getting along from the standpoint of fairness".
Trump stared at the journalists, but did not respond before entering the presidential limousine.
"We had a great discussion and we are aligned", the Elysee quoted Trump as saying during the meeting, which covered trade, defence, Syria and the fallout from the murder in Istanbul last month of Saudi journalist Jamal Khashoggi.
"Trump willfully insisted on an unnecessary trip to France to mark the WW1 centenary -then once he got there shirked on grounds of weather the job of honoring those who fought and died in rain and mud 100 years ago", tweeted writer David Frum.
The two leaders early on shared an extremely friendly relationship that was on full display during a state visit in by Mr. Macron to the White House in April. Among them: Russia's political meddling and military buildup, as well as a sense that Trump is abandoning USA commitments to European allies. "I want to help people around the world, but we have to take care of our country, or we won't have a country".