Emmanuel Macron, president of France with all the glory that commands, has had a wretchedly brief honeymoon. Elected in May with 67 percent of the vote, he promised to respect and address the “anger, the anxiety and the doubts” that many had expressed, and pledged to “recreate the links between Europe and its peoples.”

Since that heady night, he has been plunged from the heights of hope into the apparently eternal hard facts of French political life. His stellar approval ratings descended rapidly from 64 percent in June to an anemic 37 percent this week. Polls are volatile things, but it’s likely this reflects tougher verities than seasonal fluctuation on the part of the French electorate.

Macron captured two thirds of the electorate because voters were forced to choose between him and Marine Le Pen of the National Front. His majority was not all for him, but mostly against her.  He can convince the milder skeptics — but only by producing results. These will take pain to achieve, and he is the man who must inflict it.

France’s military has already felt this pain. Macron, underlining that he was now “the boss,” announced an 850m euro ($980m) cut in the armed forces’ budget, prompting the immediate resignation last month of Gen Pierre de Villiers, the military’s head — who told Macron there was “no fat left. You are cutting into muscle.”

The general has gone and the defense cuts stay — for now at least. Other cuts didn’t. A reduction of five euros a month to a housing benefit announced in July was quickly scrapped; the cut would have had the biggest effect on the poorest in society. Promised tax cuts have also been postponed – a move justified by prime minister Edouard Philippe, who had described France as sitting on “a debt volcano.”

Macron’s new party, En Marche!, dominates parliament but has few experienced politicians. The leftist Jean-Luc Melenchon, a powerful orator, has had the best of parliamentary debates — though his party, France Insoumise (France Unbowed), has a mere 17 seats in the National Assembly. During the debate on the housing cut, he displayed a bag of discount groceries costing five euros — white bread, pasta, canned vegetables — a dramatic show of what poverty means in the world’s foodiest country.

The plunging popularity of Emmanuel Macron is a sign that defensive nationalism is still on the march.

John Lloyd

France, where inequalities in income and wealth have grow relatively rapidly in the past few years, is still a country where equality is regarded as an important social good, even if more honored in the breach than the observance. Macron has cut hard against this culture; when the political season begins again in the next few weeks, his plans to liberalize the labor market will meet the force of the unions. The most powerful, the Confédération Générale du Travail, has already declared war. The others are more cautious but, backed by Melenchon and the rest of the left and capitalizing on the fall in presidential popularity, they may pull off a September of protests in which leftists, far rightists and unions all — separately or together — test the president’s reforms on the streets.

Macron, and the world that welcomed him, now grasp the scale of the task he has set himself — and the national interests he must serve even as he proclaims the need for a more integrated Europe. At the center of the European Union debate remains a stubborn contradiction. The push to integrate in order to better control the euro currency and align national economic policies will meet the desire of most citizens to hold to account their own politicians, those they have elected and understand. It is that power of national accountability that Europeans — along with millions of Americans — increasingly want to keep.

Nationalism is much more than the ideology of the far right. As the scholar Andrew Michta writes, it is a set of ideological assumptions, an “idea of sovereignty that grows from the sense of belonging to a nation.” As such, it is much more than the defeat of far right-parties. It is the still potent force with which the EU must wrestle, and which presently has the better of its ideal of “ever closer union.”

The larger question, which Donald Trump’s victory and presidency puts on the global agenda, is whether the swing away from global ideals and practices to a defensive nationalism can remain broadly liberal and civic. Or does it contain a powerful charge of resentment and anger, directed largely at elites, judged to have betrayed their first duty — that of looking after their own people first?

Italy is Europe’s present weather vane. A London Times reporter wrote this week that violence and hostility to migrants has grown “as Italians adjust to the likelihood that many tens of thousands of the newcomers will be staying permanently. The country’s tolerance is waning, its politics being reshaped.” Its neighbors, including France and Austria, have closed their borders; Italy has become a pressure cooker, with liberals and leftists defensive, the far right and populists on the electoral rampage.

Trump seems unlikely to lead the revolution he promised. Columnist Ezra Klein wrote last week that the president has been surrounded by generals who neutralize his tweets, take care of the details he doesn’t care to know and leave him to posture, “happy — even eager — to be both operationally and ideologically marginalized.” But his presidency has shown that there’s a vast, politically active constituency of the disaffected and marginalized. Macron, the liberal centrist, must contend with similar forces. The survival of liberal internationalism, in the US and Europe, will define politics in the coming years.

• John Lloyd is co-founder of the Reuters Institute for the Study of Journalism at the University of Oxford.