Donald Trump this week will embark on the first foreign trip of his second administration with a tour of the Middle East, as he looks to secure investment, trade and technology deals from friendly leaders with deep pockets amid turbulent negotiations around numerous regional conflicts, including Israel’s war in Gaza. The tour through the Middle East is largely a repeat of his first international trip in 2017, when he was feted in the region as a transactional leader eager to secure quick wins and capable of providing support for the regional monarchies’ economic and geopolitical interests. His negotiations in Saudi...