NEW YORK >> A mixed day of trading left the U.S. stock market split Tuesday as Wall Street’s momentum slowed after setting record highs in each of the last two days.

The S&P 500 dipped 0.1% for its first loss in four days. The Dow Jones Industrial Average rose 400 points, or 0.9%, and the Nasdaq composite fell 0.8%.

Tesla tugged on the market as the relationship between its CEO, Elon Musk, and President Donald Trump soured even further. Once allies, the two have clashed recently, and Trump suggested there’s potentially “BIG MONEY TO BE SAVED” by scrutinizing subsidies, contracts or other government spending going to Musk’s companies.

Tesla fell 5.3% and was one of the heaviest weights on the S&P 500. It has lost just over a quarter of its value so far this year, 25.5%, in large part because of Musk’s and Trump’s feud.

Drops for several darlings of the artificial-intelligence frenzy also weighed on the market. Nvidia’s decline of 3% was the heaviest weight on the S&P 500.

But more stocks within the index rose than fell, led by several casino companies. They rallied following a report showing better-than-expected growth in overall gaming revenue in Macao, China’s casino hub. Las Vegas Sands gained 8.9%, Wynn Resorts climbed 8.8% and MGM Resorts International rose 7.3%.

Automakers outside of Tesla were also strong, with General Motors up 5.7% and Ford Motor up 4.6%.

All told, the S&P 500 slipped 6.94 points to 6,198.01. The Dow Jones Industrial Average rose 400.17 to 44,494.94, and the Nasdaq composite fell 166.84 to 20,202.89.

The overall U.S. stock market has made a stunning recovery from its springtime sell-off of roughly 20%. But challenges still lie ahead for Wall Street, with one of the largest being the continued threat of Trump’s tariffs.

Many of Trump’s stiff proposed taxes on imports are on pause, and they’re scheduled to kick into effect in about a week. Depending on how big they are, they could hurt the economy and worsen inflation.

Washington is also making progress on proposed cuts to tax rates and other measures that could send the U.S. government’s debt spiraling higher, which could raise inflation. That in turn could mean higher interest rates, which would hurt prices for bonds, stocks and other investments.

Despite such challenges, strategists at Barclays say they see signals of euphoria among some investors. The strategists say a measure that tries to show how much “excess optimism” is in the market is not far from the peaks seen during the “meme stock” craze that sent GameStop to market-bending heights or to the dot-com bubble at the turn of the millennium.