WASHINGTON - President Donald Trump complained on Thursday that US ally Saudi Arabia was not treating the United States fairly and Washington was losing a “tremendous amount of money” defending the kingdom.In an interview with Reuters, Trump confirmed his administration was in talks about possible visits to Saudi Arabia and Israel in the second half of May. He is due to make his first trip abroad as president for a May 25 NATO summit in Brussels and could add other stops."Frankly, Saudi Arabia has not treated us fairly, because we are losing a tremendous amount of money in defending Saudi Arabia,” he said.Trump’s criticism of Riyadh, the world’s top oil exporter, was a return to his 2016 election campaign rhetoric when he accused the kingdom of not pulling its weight in paying for the US security umbrella."Nobody’s going to mess with Saudi Arabia because we’re watching them," Trump told a campaign rally in Wisconsin a year ago. “They’re not paying us a fair price. We’re losing our shirt.”Saudi Arabia’s powerful deputy crown prince Mohammed bin Salman met with Trump last month in a meeting that was hailed by a senior Saudi adviser as a “historical turning point” in relations. The talks appeared to signal a meeting of the minds on many issues, including their shared view that Iran posed a regional security threat.Riyadh and other Gulf allies see in Trump a strong president who will shore up Washington’s role as their main strategic partner and help contain Riyadh's adversary Iran in a region central to US security and energy interests, regional analysts said.A visit to Israel would reciprocate a White House visit in February by Israeli Prime Minister Benjamin Netanyahu. Palestinian President Mahmoud Abbas is due to meet Trump next Wednesday in Washington.Trump has set a more positive tone with Israel than his Democratic predecessor, Barack Obama, who often clashed with the right-wing Israeli leader, and has raised concerns among Palestinians that their leaders may not get equal treatment.Trump has also asked Israel to put unspecified limits on its building of Jewish settlements on land the Palestinians want for a state, and has promised to seek a Middle East peace deal that eluded his predecessors. However, he has offered no new diplomatic prescriptions.“I want to see peace with Israel and the Palestinians,” he said. “There is no reason there's not peace between Israel and the Palestinians - none whatsoever.”