WASHINGTON (AP) — President Donald Trump's senior adviser and son-in-law acknowledged Thursday that it might not be a "smart money bet" to gamble on the success of the White House's long-awaited blueprint for Mideast peace. But he insisted that it is a very detailed, fresh approach that hopefully will stimulate discussion and lead to breakthroughs in resolving the decades-old conflict.

Jared Kushner remained tight-lipped about the guts of the plan. He described it as an "in-depth operational document" not anchored to previous, failed negotiations, high-level political concepts or stale argumen...