John Hickenlooper

Arizona Democratic Reps. Greg Stanton, Yassamin Ansari and Adelita Grijalva reported suspicious letters, some containing unknown substances, sent to former office addresses, following a similar incident at Secretary of State Adrian Fontes' office that prompted an Arizona Capitol evacuation; the substance there proved non-hazardous. The FBI, U.S. Postal Inspection Service and U.S. Capitol Police confirmed a broader nationwide pattern, with over 800 suspicious envelopes sent to congressional and election offices. Colorado lawmakers including Sen. John Hickenlooper and Reps. Joe Neguse, Jason Crow, Brittany Pettersen and Diana DeGette also reported receiving or intercepting such letters. Staff were unharmed; officials called the mailings an intimidation attempt and vowed continued investigation.

Colorado Democrats closed out a six-day, 25-stop statewide bus tour by framing the midterms as a referendum on Donald Trump, betting that voter frustration with his administration will boost turnout. Sen. John Hickenlooper blamed Trump's tariffs, the Iran conflict and health care cuts for a "cost of living catastrophe," while attorney general nominee Jena Griswold pledged to sue to protect voting rights and immigrant communities. Candidates also cited Trump's moves against Colorado, including relocating U.S. Space Command, denying disaster aid and vetoing a water project. Republicans, hampered by infighting, countered that Democrats themselves are to blame for high living costs. Democrats are defending statewide offices and congressional seats while eyeing veto-proof legislative majorities.

Colorado, once a reliable Republican state, has leaned decidedly Democratic in recent cycles, and 2026 looks similar. Gov. Phil Weiser and Sen. John Hickenlooper are favored for easy wins over underfunded Republican opponents Victor Marx and Mark Baisley, with some GOP figures, including former Rep. Ken Buck, crossing over to back Weiser. The closest races are in the U.S. House: Democrat Manny Rutinel is seen as favored over Republican incumbent Gabe Evans in District 8, while Republican incumbent Jeff Crank is expected to hold District 5 against well-funded Democrat Jessica Killin despite backlash over the Space Command relocation. Analysts attribute the overall Democratic advantage to anti-Trump sentiment and weak Republican statewide recruitment.

Colorado's U.S. Senate race has sharpened into a proxy fight over President Trump's military campaign against Iran, with Republican state Sen. Baisley and Democratic incumbent John Hickenlooper clashing in their only televised debate on 9News. Baisley defended the strikes as overdue given decades of Iranian-backed attacks on Americans, acknowledging rising gas prices but arguing the cost is worth standing up to "bullies." He stopped short of backing ground troops in Iran.

Hickenlooper called the war reckless, pushing instead for negotiations to curb Iran's nuclear ambitions while conceding past administrations, including Obama's and Biden's, hadn't pressed hard enough. He left room for limited strikes if Iran blocked inspectors but opposed regime change. He has made war opposition central to his campaign, backing a war-powers resolution and featuring the issue in his first general election ad. The two also split over Trump's easing of sanctions on Russian diesel, which Hickenlooper called a political betrayal. Hickenlooper remains the favored candidate heading into the midterms.

Colorado's U.S. Senate contest pits Democratic incumbent John Hickenlooper, seeking a second term after a career as Denver mayor and governor, against Republican state Sen. Mark Baisley of Woodland Park. Baisley campaigns on fiscal restraint, government accountability, property tax reform and expanding first-time homebuyer access, drawing on his aerospace engineering background and work on tech and defense issues in the legislature. Hickenlooper points to his record capping insulin costs, expanding Medicare drug price negotiation, and opposing Trump administration policies on public lands, tariffs, and healthcare cuts, while emphasizing water and healthcare expertise from his time as governor.

Colorado has trended Democratic in recent federal elections, though Republicans have won statewide Senate races before — Cory Gardner held the seat until Hickenlooper unseated him in 2020. With Democrats and Republicans nearly even in active voter registration and unaffiliated voters forming the largest bloc, the race is being watched as a test of whether Republicans can flip a statewide seat amid broader national political headwinds.

Colorado's congressional delegation is voicing growing concern over artificial intelligence, though members diverge on how—or whether—Washington should respond. Rep. Brittany Pettersen called for stronger industry standards, including independent audits and mandatory incident reporting. Sen. John Hickenlooper, who co-introduced bipartisan legislation on AI testing standards, warned the country is "entering a new and dangerous era" and urged the White House to address the technology's risks. Rep. Jason Crow echoed concerns about privacy and national security.

Sen. Michael Bennet argued Congress "will never be able to move fast enough" to regulate AI directly and instead proposed creating an independent federal agency for oversight. Republicans showed a different emphasis: Rep. Gabe Evans backed "common sense guardrails" and helped pass a House bill targeting AI data center costs, while also promoting American-made AI models over foreign competitors. Rep. Jeff Crank called for safety nets from AI companies themselves. The mixed responses highlight an unresolved national debate over federal AI oversight, with implications for markets tracking regulatory timelines and outcomes.