The French government signalled Wednesday that it was prepared to make further concessions to "yellow vest" protesters, even raising a possible rollback on a controversial move to cut taxes for high earners last year.
The former investment banker was heckled by a crowd as he visited a burned out government building in Puy-en-Velay in central France on Tuesday night, just hours after a new opinion poll showed his approval rating at just 23 per cent.
The so-called "yellow vest" protests began on November 17 in opposition to rising fuel taxes, but they have since ballooned into a broad challenge to Macron's pro-business agenda.
One of the frequent demands from the protesters, who are mostly from rural or small-town France, is a repeal of Macron's move last year to cut the ISF "fortune tax" which was previously levied on high-earners.
"If something isn't working, we're not dumb, we'll change it," government spokesman Benjamin Griveaux said on RTL radio on Wednesday morning, saying the wealth tax would be evaluated between now and late next year.
Macron, 40, made the issue one of his key campaign pledges ahead of his election in May 2017, arguing that punitive taxes on the wealthy discouraged job creation and led many entrepreneurs to leave France.
Griveaux stressed that re-instating the ISF "is not on the table for now," but Equality Minister Marlene Schiappa said she would argue to bring it back unless the tax cut could be shown to be effective.
"The government has been too technocratic and took too long to respond" to the protests, she told France 3 television Tuesday in a withering assessment of the management of the current political crisis.
Griveaux stressed that the tax hikes could be scrapped permanently if no agreement was reached during consultations over the next six months.
"We're not in politics to be right. We're in politics so that things work out," he said.
A source in the prime minister's office also told AFP that "the government has not necessarily played all of its cards", with further concessions such as a further cut in residence taxes possible.
Many "yellow vest" protesters, named after the high-visibility jackets they wear, have said that Philippe's rollback on fuel taxes is not enough and have called for new protests in the capital on Saturday.
Two truck driver unions have also called an indefinite sympathy strike to begin Sunday night, and the protests have spread to dozens of schools nationwide as students denounce tougher university entrance requirements.
Farmers will also consider later Wednesday whether to mount a day of demonstrations and possibly road blockades next week, the head of the FNSEA agricultural union said.
Interior Minister Christophe Castaner on Tuesday urged "responsible" protesters not to come to the capital after crowds ran amok last Saturday, burning more than 200 cars, vandalising shops and leaving the Arc de Triomphe daubed in graffiti.
Opposition leaders, including Laurent Wauquiez of the rightwing Republicans, have called on the government to impose a state of emergency and to deploy army units to back up police.
"The Paris Agreement is fatally flawed because it raises the price of energy for responsible countries while whitewashing some of the worst polluters... in the world," Trump wrote.
Trump also retweeted a false claim from American conservative student activist Charlie Kirk that said: "'We want Trump' being chanted through the streets of Paris." Macron's office said it had "no comment" on Trump's tweets.
(With inputs from agencies.)