**The 78% market-implied probability on "No" for Paramount closing its Warner Bros. Discovery acquisition by end of 2026 reflects the binding impact of ongoing U.S. state antitrust litigation.** After the February 2026 definitive agreement, DOJ clearance in June, shareholder approvals, and nearly 70 international regulatory sign-offs, a coalition of 12 Democratic-led states sued in mid-July, alleging the $111 billion deal would reduce competition in film distribution and basic cable. A federal judge issued a temporary restraining order, leading to a July 24 stipulation that halts closure until five days after a merits ruling or June 1, 2027—whichever comes first. With the current date in mid-August 2026, this court-imposed pause through at least late 2026 (and likely longer) makes completion before year-end highly improbable. Paramount has offered a ticking fee for delays past certain 2026 thresholds, signaling realistic expectations of slippage amid the litigation. While federal and global approvals reduce some barriers, the state challenge remains the dominant unresolved risk driving trader sentiment toward delay.