Trader consensus on Polymarket tilts toward John Shulli (54.5%) as the likely Delaware Republican Senate primary winner over Michael Katz (44.5%), driven by Shulli's edge in recent internal polls and superior fundraising totals reported in latest FEC filings. Shulli's campaign emphasizes business experience and local endorsements from key GOP figures, bolstering his position in a low-turnout primary expected in early 2026 ahead of the open U.S. Senate contest. Katz, a former State Department official, trails despite strong foreign policy credentials, hampered by weaker grassroots support. No major shifts from recent debates or events, but upcoming party conventions could sway odds as trader sentiment tracks voter enthusiasm metrics.