38th Parliament. He became the party's national critic for youth issues, the environment and national parks. He continued to support the moratorium on offshore oil and gas drilling despite Prime-Minister Paul Martin opening a cabinet level review of the moratorium; the review ended with the conclusion that lifting the moratorium was too politically divisive. By the end of 2004, he was voted "Favourite Up-and-Comer Rookie Politician" by fellow Members of Parliament. He was also awarded the US Ambassador's Award as one of only two Canadian recipients. In the first half of 2005, Cullen toured western provinces with other MPs to promote a private member's bill (Bill C-261) which would lower the voting age to 16. In February he made a motion in the House of Commons to "recognize the public health impacts of smog" and require improved emission standards of light duty vehicles sold in Canada, though it was not supported by the Liberal Party or Conservative Party. In the fall, Cullen challenged the Minister of the Environment Stéphane Dion to take a blood test to illustrate the level of toxins present in the environment. He also spent time lobbying the Liberal government to publicly disclose the bids for Ridley Terminal; the proposed sale of the Prince Rupert Port Authority coal loading terminals by the federal government to a private firm was criticized by opposition parties as undervaluing the facility and likely to restrict fair access by competing coal companies. The sale was ultimately blocked by the Conservative Party after they won the subsequent election. 39th Parliament In the 2006 election, Cullen faced a strong challenge from the Conservative Party candidate and former MP Mike Scott (who had represented Skeena from 1993 to 2000). Scott ran an aggressive campaign attacking the Liberal candidate, filing a request with Elections Canada for an investigation into Cullen's campaign finances, and using signage saying "Re-elect Scott", despite the fact that Cullen was the incumbent. Cullen was effective at forcing Scott to defend issues from his time in office during the 1990s while Scott made Cullen defend his vote to support the Canadian Firearms Registry despite promising to vote against it. Cullen went on to win by an unexpectedly large margin, 15%, over Scott. In April 2006, Cullen introduced a Private Member's Bill (Phthalate Control Act Bill C-307) to ban phthalates, a chemical in many plastics, from products intended for infants and toddlers. The bill